The nut is 36mm but there is a special modified socket is required. The actual part number of the socket is a Kent-Moore J-48669 High Press Fuel Pump Nut Socket. This special 36mm socket allows proper torquing of the high pressure fuel pump nut, which requires a specific O.D. on the socket to allow proper engagement in the recess. For DD13 and ...DESCRIPTION - O-Ring High Pressure Fuel Pump For Detroit DD15 Engine INCLUDES: 1 - O Ring (Ref. 20) OUR BRAND DDTP is an OEM alternative for diesel engine ...high pressure fuel rail feed lines on the EPA10 and GHG14 DD15/16 engines. Service kit P/N: A4730704432 contains all of the necessary parts to replace the high pressure fuel rail feed lines on the GHG14 DD15AT engines. Additionally: Reference 13 TS-5 for additional information on the differences between the two and three fuel filter system. The fuel system has been replaced with the injectors due to metal in the fuel system. It was performed by another shop. The customer said he spen ... DD15 loosing prime. catfan Location Offline Senior Member Reputation: 38. Thanks Given: 1102 Thanks Received: 443 (61 Posts) Posts: 251 Threads: 88The Detroit DD15 has been on our roads for some time now, but remains a bit of a mystery to some. Penske Power Systems have set up a DD 15 website with a number of multimedia explanations of the engine's technology. Apart from the videos showing the engine's manufacture, there is a tear down of an engine after it burned 720,000 litres of diesel.When a high pressure fuel pump is replaced on a DD13, DD15, or DD16 engine, the fuel system must be primed for two minutes at 483 kPa (70 psi) to properly prime the lubrication circuit on the pump. The tool uses shop air pressure 827 kPa (120 psi) to prime the fuel system at 483 kPa (70 psi). The fuel system will prime quicker after aSeems to be losing fuel prime. LMM: Jump to Latest Follow ... 07.5 GMC LMM Extended Cab 8' bed SLE, micron auxiliary frame mount fuel filter with lift pump, Top Gun Full replacement front bumper with matching rear bumper, kryptonite UCA & 2" lift keys with 2" rear blocks, all front suspension parts Moog HD, KYB Monomax shocks, Century Cab High ...Last 6 of Vin are BD2950. 2 days ago I was driving and suddenly my fuel start - Answered by a verified Technician ... I have a freightliner with a dd15 engine. It was losing fuel pressure and I had to change the check valves and the fuel filter housing. The truck started and ran fine and then suddenly shut off.Created Date: 9/22/2014 3:33:01 PMOct 18, 2022 · With a powered DD approved fuel priming device like the ESOC 455, you can prime a DD13 or DD15 fuel system in minutes, successfully start the engine every time,... losing prime for starting: Mick79: 3 - 18-Dec-08 Original Post: 22-Nov-08. 21 october star sign cusp There you have it, the best way ...I've got a Western Star with a DD15 automatic that has fuel issues. Truck shuts down on the highway when I'm driving randomly, loaded and unloaded. Truck goes into neutral. Rpms fall to 0. Cranks but wont start after shutdown while driving. Just got new batteries and there are no voltage issues. There are codes for fuel rail pressure.As a general rule there is a check valve on fuel line before head. replace it. I had this annoying problem also and changed mine out and it was fixed. you need 6 foot gorilla arms to get back to it, but it threads right out. that must have a disc and spring for the one-way action.2012 DD15 800k miles Truck ran fine until 797k miles, then DPF problems began causing the Filters to be blocked or clogged, did couple of forced Regen a , ran ok but while heavy lots of black smoke coming out and power loss while turbo fluctuations at around 1400&1500 rpm I "fixed" the DPF/SCR problem to run "old school" style.2013 Western Star DD16 losing fuel prime, rail pressure drops to 16psi in minutes after shutdown. VIN FM4844 2 filter fuel system. 2 injectors … read more Kraimone High school 25 satisfied customers I wanna buy a cascadia 2018 with dd15 engine from schneiderSep 26, 2011 · Series 60 Fuel Return Check Valve. The purpose of the check valve is to reduce the risk of fuel prime loss and fuel siphoning from the head when the fuel filter is removed. To determine if the fuel supply valve is causing starting difficulty, perform the following steps: Check that fuel supply…. Two spin-on type filters are used on the ... I have freightliner 2011 with a dd13 engine,I changed the fuel filter & I can't get the fuel system primed & engine started.the hand primer never gets hard.Is there a certain way to prime it,other than just pumping the hand primer. Thank's for any help. LarryMy 2014 frightliner Dd15 keeps losing prime new pump back in Oct 2020 ? ... I have a freightliner with a dd15 engine. It was losing fuel. I have a freightliner with a dd15 engine. It was losing fuel pressure and I had to change the check valves and the fuel filter housing. The truck started and ran fine and then suddenly shut off.Hi, I have a 2012 freightliner cascadia with a DD15. I recently removed the fuel filter housing and fuel pump to replace Fuel pump seal. And now i have fuel in my coolant reservoir. ... I have a 2014 freightliner Cascadia with a DD15 that is losing coolant steam out the oil separator, but has no oil in the coolant. The coolant is entering the ...Buy DETROIT DIESEL DD15 FUEL FILTER HOUSING MODULE A4710904552 NO CORE -> 6281: Fuel Filters ... Free With Prime: Prime Video Direct Video Distribution Made Easy: Shopbop Designer Fashion Brands : Amazon Warehouse Great Deals on Quality Used Products : Whole Foods MarketJ-47912 Fuel System Priming Pump 5869. This tool is referrred to as the "bug sprayer". The chrome tank uses pressurized diesel fuel to bleed the fuel system on the S60, MBE 900, MBE 4000, DD13 and DD15. Attaches to the system via a "compu-check" quick connect fitting. This tool is also an alternative to 12-922-01 for Maxxforce 11 & 13 2010 ...Aug 17, 2019 · I've got a 2015 D13 and I'm losing fuel prime completely randomly. Did it at 12 degrees out on a cold start, then 3 days later at 60 degrees after sitting two hours and today at 50 degrees after sitting an hour. I changed all cups about 100k miles ago and replace a cup and injector just last week. It doesn't seem to be cup related. Title: Test-B - Two-Filter Fuel System Author: gary Created Date: 5/26/2022 11:31:16 AMLosing prime in fuel system. Jump to Latest Follow 34K views 23 replies 14 participants last post by noahlace Sep 19, 2013. ... Now I'm getting scared it may not start at all. I figure it's losing it's prime and the cranking is necessary to get the fuel back up to the cp3. So, after I shut if down for a few minutes, I cracked the bleed screw on ...3 Fuel System (With MCM Heat Exchanger) -Two-Filter System 1. Fuel Tank 2. Fuel Supply from Tank 3. Pre-filter 4. Hand Primer 5. Low Pressure Fuel Pump 6. Fuel Bypass Valve 7. Water Coalescer / Final Filter 8. High Pressure Fuel Pump 9. Fuel Rail 10. High Pressure Fuel Injector Lines 11. Fuel Injectors 12. Needle Return Line 13. Needle Return ...Step Two: Tuning the Prime Shot (Fuel Prime Percentage and Fuel Prime Multiplier) Start by going after the fuel prime shot—the amount of fuel injected into the engine before cranking begins. If the prime shot is set correctly, and if the engine is getting adequate air (as we’ve already confirmed), then there should be virtually no cranking fuel …Programming the MCM, ACM, and CPC to a MINIMUM of the software and fuel map version listed below is necessary. See 20TS-04 if New Cascadia CPC501T is not at the software level shown in this table. The MCM software and fuel maps became effective for all GHG21 DD13 engines, which began production on January 6, 2020.We would like to show you a description here but the site won't allow us.module assembly. Prime the fuel system. Go to step 16. For all others, let the ATS drain for more than 10 hours. Reassemble and install the ATS. Prime the fuel system. Go to step 14. b. No; clean the exhaust system. Prime the fuel system. Go to step 14. NOTICE: Running the engine at high idle for one hour MUST be done before performing a parked ... Duramax Filter Head Rebuild Kit, 2001-2010 Duramax. MA is a GREAT source for all Duramax and Allison parts!!! My LB7 was loosing prime too and we rebuilt the filter head and it was great from there. Then we installed an AirDog filter system and deleted the factory filter and it is good to go from there... They are great trucks and can run darn ...Two things can go wrong and can turn on your check engine lightjedstamm. Sounds like the lift pump is letting fuel back thus causing your loss of prime. You can put an electric pump on and run it through the factory lift pump, but you're setting yourself up for problems down the road. If the seal goes out of the lift pump, the electric pump could fill your crank with fuel.This one I'm having trouble with is a 2010 Columbia with EPA '07 DD15. There has to be something in the ECM, some kind of eco-friendly setting. ... It started when it was cold, I thought it was because of fuel gelling up, but it happened just now at 25+, I can even get up to 70 and I am governed at 65, but then it just drops back to 60. Also ...12,915 satisfied customers. My 2010 Freightliner w dd15 epa07 is displaying 4 fault. My 2010 Freightliner w dd15 epa07 is displaying 4 fault codes. #1 Sam Controller Sht Hi 249s254 03, #2 Chass Controller Sht Lo 216s254 … read more.After the install, we finally got the engine to start after fuel priming and was idling in the shop fine. Turned it off to do a once over for leaks etc... and it sat for maybe 30 + minutes. Went to start it again and it wouldn't, had to prime the fuel system again. Checked codes and got the P0087 and 2291 codes.Jun 2, 2021 · Well, you have the BEAR, that is what it is called once losing the fuel prime. The dealers have machines to get the system primed. All I can tell you is to open the return lines on the back of the head. Pressure the fuel tank, and spray WD 40 in the air filter. Wayne Cascadia 2011 DD15 Losing fuel pressure Discussion in 'Trucks [ Eighteen Wheelers ]' started by Aldoh, Feb 5, 2017. Feb 5, 2017 #1. Aldoh Bobtail ...Quote from: tnichol on July 25, 2011, 07:45:42 AM. Greetings folks -. I've got a 1979 MCI with "rebuilt" 6v92 Detroit Diesel engine. It has recently started to lose prime, and become impossible to start. What happens is that sometime after I park the fuel system loses prime. I can tell it happens because if I drop the 2 fuel filters that they ...Cascadia 2011 DD15 Losing fuel pressure Discussion in 'Trucks [ Eighteen Wheelers ]' started by Aldoh, Feb 5, 2017. Feb 5, 2017 #1. Aldoh Bobtail Member. 3 0. Feb 5, 2017 0. I have a 2011 cascadia with DD15 and early morning when im going to started the fuel pump already loose the pressure so i need to pump it to started. It only ...9500 Combine losing its fuel prime in one day... used to lose it after sitting for 2 weeks - keving: 6/23/2020 12:03. RE: 9500 Combine losing its fuel prime in one day... used to lose it after sitting for 2 weeks - rjw: 6/23/2020 12:20; RE: 9500 Combine losing its fuel prime in one day... used to lose it after sitting for 2 weeks - ccjersey: 6/23/2020 13:05proper fluids, such as fuel, coolant and lubricating oil, to maintain long engine life. The use of fluids that do not meet Detroit™ specifications may result in premature wear or engine failure. Forward 4 All information subject to change without notice.Hi guys So I had a PM done at the Glade Springs VA Petro, and they really fouled it up. Overfilled the oil, got oil all over the engine, etc. Went to...(04-13-2018, 07:32 AM) vsandhn Wrote: (04-11-2018, 03:37 AM) gstturbo8 Wrote: Good afternoon, I have a problem with a dd15 engine, this engine changed the fuel pump, after this the problem started ... the problem is that it is difficult to start the engine, once it starts, it works very well , you turn off the engine and after a few hours it does not start, I have to prime it again. to this ...Proceed as follows:. Ensure priming canister is ¾ full (approximately 9 liters) of fuel. Install fuel priming canister to the priming port on the fuel filter module. Ensure …Feb 4, 2018 · Feb 4, 2018. Check everything from the pump back to the skimmers or main drain. I always lose my fuel prime if I let the truck sit for more than a few hours. For use on Detroit Diesel DD13 and DD15 engines. Detroit diesel series 60 losing prime time. 2015 dodge challenger fuel filter locationZU VERKAUFEN!Proceed as follows:. Ensure priming canister is ¾ full (approximately 9 liters) of fuel. Install fuel priming canister to the priming port on the fuel filter module. Ensure …WARNING!!: ⚠️⚠️⚠️Always use the proper tools and safety equipment to perform this job. Failure to perform the job correctly can result in personal injury or ...Mar 15, 2014 · I have a 2011 Cascadia DD15 with 312,000 miles recently when I shut it of it will lose fuel pressure after about 15 - 20 min. It does not have a check engine light so Freightliner in Madison WI cant figure out whats wrong. They have checked the injectors and said they are OK, replaced the fuel filter and base unit for the fuel filter. 54 posts · Joined 2015. #1 · May 22, 2018. I've had a problem with the truck losing prime for years now. First time it was the pickup tube in the tank having a pinhole and it would lose prime if it got below a 1/4 tank. Didn't have any problems for a while after that and it started showing up again last year. I added a Kennedy single pump and ...Prime system using fuel priming valve or hand primer. ... DD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037: Generated on 10-13-2008: Posted in DD15 Engine. Published by samuel07042012. View all posts by samuel07042012 Post navigation. Prev DD 15 - Section 35 Repair Procedures.Deleted DD15 Lopes at idle and low power. I have a customer's 2012 Coronado with a DD15 in my shop right now. It had a delete done about 8 or 10 months ago (not sure who did it) and hasn't had any problems until now. The truck will run good for about 10-20 miles and then it acts like it goes into limp mode and it will only pull hills at 30 mph ...We are losing fuel prime on a 2007 Autocar garbage truck with a Cummins ISL engine. ... It keeps loseing its prim. 05 freightliner Columbia dd15. ... I am losing prime on CIH CX90 with a perkins. Will start to lose prime just after sitting for 30 min. It gets worse each day.Features: High quality stainless steel tank eliminates corrosion and holds up to 3 gallons. Heavy duty hand pump assembly provides smooth operation and long life. Attaches to the system with a "compu-check" quick-connect fitting at the end of a 6' pressure hose. Applications include Detroit Diesel S60, MBE900, and MBE4000.FASS Installation Manuals Contact Information Manuals Warranty Registration & Policies Troubleshooting & FAQs Locate a Dealer Become a Dealer Dealer Resources Drop-In Series Titanium Signature Series Competition Series Industrial Series Titanium Series Signature Series Adjustable Fuel Pump Adjustable Series DRP Series (Dodge) DMAX (Duramax) FASSDD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037: Generated on 10-13-2008: Posted in DD15 Engine. Published by samuel07042012. View all posts by samuel07042012 Post navigation. Prev DD 15 - Section 3.3 Fuel Cooler. Next DD 15 - Section 3.7 Quantity Control Valve. Leave a Reply Cancel reply.Fill the single container with clean fresh fuel and prime the fuel system using the hand primer. Crank the engine for 20 seconds. Does the engine start and run? If yes, check for loose connections, kinked fuel lines, or issues related to the fuel tank. ... DD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037: Generated on 10-13-2008: Posted ...Joined: Feb 2016. RE: DD15 LOSS OF POWER. INJECTORS or BAD DPF DELETE??? If I were you I would take off the exhaust pipe right after the turbo or pipe coming to the onebox (filters) and test drive it without the pipe that will take care off the restriction issue if you have one. Also make sure your egr pipe is blocked off.Finally need to readdress this D12 Volvo losing Prime. I have replaced both filters, the Davco, and the one mounted on the motor. I checked the ball and spring, in the Davco, looks good and spring is intact. Spring does not seem very strong but does push the ball back when you release it. I replaced the Overflow Valve.Detroit diesel series 60 losing prime minister; I Hate My New Dentures What Can I Do For It. This can be overcome by have a bone grafting procedure done. We are a general dentistry practice, so of course we offer many other services, but the impact of MDIs on our bottom line has been outstanding. Can the look of my dentures be changed.3 Check that all fuel system connections are tight, sealed. and that the lines are not kinked. 4 Make sure the hand primer pump is screwed tight. against the filter housing. 5 Look and smell for leaks on the pressure side of the fuel. system. If after checking all the items listed above there is still air in.jedstamm. Sounds like the lift pump is letting fuel back thus causing your loss of prime. You can put an electric pump on and run it through the factory lift pump, but you're setting yourself up for problems down the road. If the seal goes out of the lift pump, the electric pump could fill your crank with fuel.Detroit DD15 - Chirping & Noisy Injectors. Customer has a DD13. They had active code SPN 157 FMI 10 (Undercapacity in high pressure circuit) that was active. The troubleshooting led them to replace the PLV, and this fixed the code. However, the injectors were still making noises. The client ran the injector tests, ran multiple road & shop idle ...I have a detroit dd15 esn 472903s0091589 that i am having a suspected fuel issue with, it is reading that it has desired - Answered by a verified Technician ... If you prime the system to 90 pounds, does it start? You need the ESOC 250 to prime the system. ... have 2013 dd15 that quit running while driving down road davco filter was empty towed ...New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6TAT Express Inc.972-225-30174140 Langdon Rd.Dallas TX 75241DD15 no start,DD15 Fuel,How to prime dd15 ...Pressurize priming canister to maximum pressure. Open shutoff valve and allow system to fill for 60 seconds. Close shutoff valve. Check for fuel leaks, repair as necessary. Crank engine for 20 seconds. If the engine starts, go to step 12 . If engine does not start, allow for a 60 second cool down and repeat steps 4-8.If the level was under ¼ tank (or 25%), fuel sloshing in the tank could be the cause of aerated fuel that could cause this code. If the fuel level was over ¼ tank (or 25%) when the code was set, Go to step 4. Check for fuel contamination, including Diesel Exhaust Fluid (DEF), water, gasoline, kerosene, coolant, etc.8,253. Jan 24, 2014. chicago,il. 0. Hey guys, Have a C-12 2KS, I lose a little Prime in the morning come start-up...If I dont manually prime it- It take about 15- 20 second of Crank till it hits..... I checked all the usual suspects- All Fuel Lines tight-None leaking- Lift Pump New, Filter Base Tight to head,No Leaks, No secondary Filter ...PATENT PENDING The ONI581T is a superior alternative to the traditional "bug sprayer" tool, the Kent-Moore J-47912. Not only can it be used to prime the fuel system on several engine models, including the S60, MBE900, MBE4000, DD13, and DD15, but it also boasts a more advanced design and higher performance capabilities.To prime cycle the key to the On position, listen for the pump to run. Wait until the pump stops running approximately 30 seconds. Do this at least 6 times and then stop after you don't hear any weird noises. The "buzzing" noise at the upper filter is air in the system. This 6.7L fuel system is VERY picky about air.18 gru 2020 ... ... primer 9,000 times after changing fuel filters... Anyway fuel jug, 12 volt cummims isb fuel pump hooked to jump box then into the compucheck ...Created Date: 9/22/2014 3:33:01 PMOct 18, 2022 · With a powered DD approved fuel priming device like the ESOC 455, you can prime a DD13 or DD15 fuel system in minutes, successfully start the engine every time,... losing prime for starting: Mick79: 3 - 18-Dec-08 Original Post: 22-Nov-08. 21 october star sign cusp There you have it, the best way ...Now that I think about it. It seems like the fuel filter housing will absorb fuel if you slowly move the filter up and down on the DD15. I kept going back and forth for more fuel from my reefer tank. I think this short break of getting more fuel allowed the fuel filter housing time to absorb the fuel.Detroit diesel series 60 losing prime video; Priming fuel system on detroit 60 series; Detroit diesel series 60 horsepower; Detroit diesel 60 series troubleshooting; Detroit diesel series 60 for sale; Boots For Plus Size Women Because they're awesome. When we typically think of this dress/boot combo, we often envision a plus size dress with ...Feb 4, 2018 · Feb 4, 2018. 0. Hi, I have a 2012 DD15. I am experiencing hard starts.. when the truck sits overnight or over 2 hours I lose all prime. I nocited I have air bubbles in my Davco filter. I took it to the shop and make sure all lines are tight and they are. They also replaced filter and fuel housing filter. I don’t have a check valve on this ... IMA KEEP IT REDNECK. Dec 1, 2018. #6. The frame mounted separator is a large Davao. The newer dd15 has a 2 filter system that has a water seperator in it. The older had a 3 filter that had a seperator. It’s part of the fuel module on the engine. You can’t get it without the engine one, the frame one is optional.Triage Tech/Shop Foreman. Associates. 649 satisfied customers. I have a 98 cat c-12 semi truck engine losing prime. I have. Hi I have a 98 cat c-12 semi truck engine losing prime. I have changed all the fuel lines, the check valve in the return line housing, the hand prime … read more. Ok I am not losing the prime. I just opened the fuel filter cap and the bowl was full. Now this is the other thing when I went to remove the cap there was a vacuum you could here. Is the normal? 2003 6.0 EXCURSION EB 1993 5.0 MUSTANG LX. Reply. Save. ex mounty.The Shop Pro is a multipurpose shop floor tool, custom designed to remove water and contaminants from a diesel fuel tank, transfer diesel fuel and prime heavy duty diesel engines including the Detroit Diesel DD13/DD15/DD16 engine line. What makes the Shop Pro unique is that it can be used to prime heavy duty diesel engines using on-board fuel ...New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6TAT Express Inc.972-225-30174140 Langdon Rd.Dallas TX 75241DD15 No Start is a common issue we see in ...3) air pressure sensor bad. 4) def pump pneumatic switching valve, bad. The 1 and 3 are unlikely cause if I fill the tank they go away. 2 might be I'll need to check it. 4 is suspect n1, since the switch works better the more liquid is in the tank, since gravity helps the switch when tank is full.Fuel: It could be a reason that fuel injectors are not working properly and engine not getting the fuel required to perform at optimum level. Compression: Compression level is also a reason for the power loss because low compression level causes the less power out come. Last edited: Sep 13, 2017.I have a dd15 I did a complete inframe has new Bosch injectors prior to doing the inframe my truck would start up just fine after inframe truck takes about 40 -60 seconds if not more to start up ... Has been losing fuel prime and will not start without hand priming/ ether. Have replaced hand primer, as well as fuel transfer pump. ...Earlier, I had a problem with DPF system. So I brought my truck to the dealer, they diagnosed my truck and said that DOC BOX shows very high temps like over 1500 degrees which means that I have bad injectors and they are over-fueling too much and because of that made my DPF soots very dirty. The only solution is to replace new …Re: DD15 HARD TO START UNLESS PLUGGED IN Feb 18, 2021 1:02 PM Had A Loss Of Prime Turn Out To Be Hand Prime Converted To A Two Filter Fuel Module Problem No More Kyle Siebert 4,151 posts since Nov 14, 2014 Re: DD15 HARD TO START UNLESS PLUGGED IN Feb 18, 2021 6:03 PM I take it you found that with a low pressure leak check? E-cowlboy 19MM High Pressure Fuel Line Socket Tool for Detroit Diesel DD13 DD15 DD16 Alternative to W47058090900. 4.7 out of 5 stars 809. 300+ bought in past month. ... Oni Tools J-47912 DETROIT DIESEL S60 MBE 900 MBE 4000 DD13 DD15 FUEL SYSTEM PRIMING PUMP OTC5869 Alternative. 5.0 out of 5 stars 1. $489.99 $ 489. 99. FREE …Frequently bought together. This item: 6pcs Fuel Filter A4, The fuel system has been replaced with the injectors due to metal in the fuel system. It was performed by anothe, Low fuel level and contaminated fuel clogging up the fuel filter are two main reasons beh, The enhanced Detroit DD15 Gen 5 engine is helping Schneider — a provider of trucking, interm, 28,751. Jun 19, 2013. #2. Re: Mercury Loss of Fuel Prime. Underst, DD15 Fuel System Technician's Guide - DDC-SVC-MAN-0037: Generated on 10-13-2008: Posted in , Sounds like it is losing its prime. If the SRS and trs , The air compressor, fuel pump, oil coolant module and camsha, To rule out the possibility of a leak in the fuel line (s) or, My JD 5420 has started to lose fuel prime when it sits overn, PATENT PENDING The ONI581T is a superior alternative to the tra, About Press Copyright Contact us Creators Advertise Develop, I have a detroit dd15 esn 472903s0091589 that i am having a su, Sounds like it is losing its prime. ... Its what holds the fuel p, Feb 5, 2017 · Cascadia 2011 DD15 Losing fuel pressure Discussio, Put a whell valve stem in the cap. (After gutting and drilling hole, On dd15 the fuel is priming up but we are still not gettin, The photo is taken on Detroit Diesel DD15, but DD13 & .