Fixing a duramax losing prime
ฝัง
- เผยแพร่เมื่อ 31 ก.ค. 2019
- This truck has been having issues loosing prime since the fuel filter was changed. The truck was towed back to the shop after it wouldn't restart the other day. They "fixed" it and the issues came back the next day. They called the shop this morning and they didnt want to have it towed back to fix it and they told the customer to fi s someone else to fix it and they would reimburse him for it. We went out and got it taken care of him.
- ยานยนต์และพาหนะ
That's the best form of advertising, referrals. I started another business doing remodeling and property maintenance decades ago after selling a different business and retiring. I advertised for a year and stopped because referrals gave me all the work I could handle. When you do a quality job and do it professionally, word gets out!
Great advice regarding not cheaping out on diesel engine, it's usually a $2 part failing that causes a $10k rebuild. That filter was definitely tightened with a filter wrench, smart people only ever use them to get filters off (as you said).
Word of mouth is a very powerful double edged advertising tool, shops that do bad or meh work have very few customers referred to them, while shops that do good work get heaps of new business sent their way by happy repeat customers. You're definitely doing it right if you keep getting customers referred to you constantly.
Thanks for all the input you share.
Great inputs. My 6.6 won't start at the ranch which is a serious problem. And it's a dully, not easily towed. Got fuel to the bleed screw. And recently had the fuel filter changed. Thanks.
New subscriber, subscribed to your father channel but I been watching your video for a few day now, you're a excellent you-tube creator and very intelligent at what you do for a living.
Those federated filters are bad news. Good find!
I’m a charter motorcoach owner. May I suggest finding you a place to stay in DC in the spring of every year. Every motorcoach operator on the entire East Coast is in DC from about March-May. All of your public schools are taking their field trips then. Still not uncommon for there to be hundreds of motorcoaches on any given day there. Blown air lines/bags, coolant leaks, power steering leaks, a/c or heat inop. You name it , the coaches break and need fixing FAST. The DC area itself is a pain in the ass as far as traffic but seeing broke down motorcoaches is as common as weed at a Willie Nelson concert. If a man could stand living in Northern Va. or DC and would open a motorcoach repair shop he’d do quite well for himself. I just left a motorcoach repair shop in the suburbs of Minneapolis that literally cannot keep up.
Anyone can and will work on personal vehicles which is why the money is so up & down in that market but few specialize in modern motorcoach repair and the labor rates are far higher. All that’s needed to ensure a steady clientele in to be close to a major metropolitan area, especially if it’s considered a tourist destination.
I am (was) a firm believer that only DELCO filters go on my Duramax as well. Then come the class action suit that exposed Our favorite filters are made in china. I actually had a GM parts manager tell me this and I failed to believe it, however unfortunately its true.
That fact the consumer pays and average 55% more for the Delco name, prompted the courts to take the case and now the class action is alive and well.
The company contends their use of "Made in America" is due to the fact although they source ALL MATERIAL in China, they are assembled in the U.S.
Frankly I AM SICK OF CHINA flooding this nation with JUNK!
I wrench for an ambulance company.....16 duramax powered trucks and 30 6 litre fords.....we only use gm filters and ford filters......minimizes issues
Filters MADE IN CHINA always use the OEM filters GREAT video and GREAT business practices!!! 👍👍👍
Thanks for the video. Sweet xj!!
The street rod Nationals are going on in Louisville Kentucky this weekend. When you commented about seeing all the hot rods on your way to Kentucky
Hey, I just wanted to thank you so much for your advice on the AC Delco filter sure enough I had a Japanese ILFI and replaced it with the AC Delco one primed it back up truck is fixed. Thank you again for your advice. John Hacker
Thanks for the info! Saved my ass!
Great video
Ive got 250,000 on the lml. No start this morning, after sitting all weekend... last month was the 1st time since owning the truck i did not use ACDelco.. now to the store for a good filter
I have experienced the same issue at two different shops and both were Chevrolet DEALERS! So the AC Delco is not the fix all. Also, the hand pump/primer you used can usually be used to start the truck when it looses the prime; done it 15-20 times...worked every time. Your customer should try that each time before making a call for help. I have not used the bleed screw, just push the primer several times until you feel it become hard to depress. Good Luck
Still pulling air you shouldn’t be able to push it that many times or with the bleeder screw in pretty much at all
Great info. Got a question...I'm not a diesel guy but I'm trying to help out my GF's dad. He's got a 2003 LB7 Sierra, and I saw a lot of videos suggesting things like this, or rebuilding the filter head (which I've done.) When I picked up the new Delco filter it came with 2 sets of O rings (TP3018). When I took off the black, no-name filter off the truck, it had a grommet in the center of the filter, but the Delco didn't come with it. Do I need to switch it over? Thanks.
MAC tools my top ones along with Matco/Snapon!!! 🔧
I am having this exact problem after my filter froze up and I replaced with NAPA fuel filter, I can get it started with starter fluid then it runs fine, however once it sits it looses it’s prime, I used a Napa fuel filter..I hope this is the problem, if this is it I owe you a huge thank you! 🙏 ..when I primed it I accidentally pumped it with bleeder tight and fuel came out of the pressure reg sensor...maybe I ruined that? I’ll try new GM filter and msg back, thanks again for sharing
Just had my first no start on my duramax, found this video very helpful, on my way to get an a c Delco filter. Thanks
Did it fix it?
@@nathanschneider2792 found out my cheap filter was a bit loose, went and bought AC Delco, running great.
How about a k&n fuel filter ? Is it any good ? I have an 06 Sierra 2500
I am on my third Delco filter, I’ve been through this process 3 times now. I have replaced the housing and the filter every time and I still can’t get it to run more than 10 seconds. I will continue watching videos I guess
Check for collapsed soft lines from the hpfp back to the tank. With no lift pump I've seen them collapse a few times.
My new to me 07 duramax. Has to be primed on cold start. But there is no fuel around filter head when priming. What should I check next?
My 08 duramax is loosing power also recently lost prime and shut down while idling when priming the fuel spits out any suggestions will def be changing fuel filters for starters can this be causing my power loss as well
Actually, I found this video very interesting!
Yes ,thank you for stressing on using OEM parts....ac delco fiter is 4 micron, cheap filters and some other brand name filters that crossover are 7 micron...
The only time i don't use them is when we do the cat filter conversion
What if you don’t get fuel filter to prime after changing filter assembly and line in and filter
One question: Do you find it easier to access through the Wheel well or from the topside?
I cut out a 8x12 section out of the wheel well on my 07” and used double side Velcro and 3 zip screws, wham bam spank it out 15min done. Bought the truck brand new used to fight that hole process ever other oil change!! Not no more
The syphon straw could also have a hole sucking in air from the tank
%100 Facts : Lost items are always found, in the last place you look.
Hi. My duramax is having re starting issues. Starts fine runs good. But turn it off and re start it and it won't run. Pull the key and try again after a minute or two and it runs starts ??
Hopefully my old ac delco filter is the culprit on my 2011, i believe i just lost prime tonight, started it and ran fine for about 20-30 seconds then cut off, cranks now but doesn’t start, didn’t have time to mess with it but hopefully tomorrow i can tackle it
Any updates on the culprit?
What's your thoughts on cat fuel filter conversion? I just did new injectors in my lly and truck came with a new Hastings fuel filter, I installed that before cat was ordered and figured I'd run since it's a new $30 filter but I sporadically loose prime, may do fine for 3-4 days then loose prime twice in one day.. Guess I'm swapping to the cat filter tomorrow...
I prefer the cat filters, you loose the drain but the filter os cheaper and filter down to a smaller micron. I always recommend that and a lift pump to duramax customers.
@@Spyke383 great that's exactly what I was thinking, I'll be adding airdog lift pump in the next month or two to separate out the water. Thanks for your reply
@@Michigan-thrifter the airdog also really helps prolong the life of the cp3.
@@Spyke383 I know along with separating water, air and more debris... Still not sure why so many people delete factory fuel filter once lift pump is installed, I like the peace of mind 3 filters offer
I just installed a wix, 89 dollars, having these same issues. Not sure what’s going on
what is loosing frame means? please explain...
You didn't diagnose anything, just threw parts at the problem hoping it would fix it. You don't explain how a fuel filter can cause the fuel system to "lose prime". Losing prime actually means air is getting sucked into the supply side of the fuel system. To diagnose this, you force pressure into the supply side of the fuel system to see where fuel leaks out. If fuel leaks out of that area under pressure, it will suck air into the supply side under vacuum. What's not shown in this video is if the problem came back.
Problem returned next day I'm thinking that whole assembly is crap. The older ones have a plastic bleeder screw that leaks. AC Delco is now Chinese junk sorry Indiana I've been GM OEM for 45yrs now with China never I have WIX on my Duramax no leaks.
THIS A FUCKING GREAT VIDEO THANKS
I put gas in my diesel cans! 😂😂
Whst a clever reply from an ignoramus.
I roared at that 🤣😅🤣🤣🤣😭😝
well, i've got a customers truck doing the same. replaced the filter with an ac delco, truck ran like new for 4 days and died again. this time its different though. the primer had pump will be soft at first. pump it till its hard, truck starts, dies, pump still hard. seems like there is plenty of fuel there. keep trying and it will go back to normal for about a day. this one day luck has happened twice now. im thinking the housing itself may be the issue.... any ideas
Check for collapsed fuel lines. Usually on the left side of the engine. Have also seen cracked filter heads.
How long did you have to prime it ???? Mines taking forever
Did you top off the filter with diesel before installing it?
Thank you
Tool box tour 😏😏😏😏😏😏
I am 74. trust me finding things gets worse.
Why didn't you show it starting🤷
One thing about diesels which I’m sure you and your dad know, but others who are not familiar with them would know, is that unlike a petrol (gasoline) engine, diesels DO NOT TOLERATE air in the fuel at all.
A small air bubble in the suction line is enough to stop the engine, and cause it not to start again.
So I guess what you are showing in this video is over tightening a filter could cause it to distort, and allow air in...
Yes, over tightening can be as bad as under. Also stressing using quality parts.
Hey bro have 6.6 duramax 2008 when truck get got it goes to limp mode have some code p2510 p0381 any help
AC Delco 😅 Every Big D owner knows you only put Wix in or Napa Gold which is the same thing
What’s your thought on the Wix filters?
In most cases I love them. But when it comes to a duramax the only filter I've never seen give any trouble is the ac delco or the CAT conversion.
@@Spyke383 they recently changed the ac delco filters. And apparently people are having issues with them now
@@agger838 Thank China for that
Commenting on the video for the algorithm
Best way get business that the way
I have an LB7 crank no start I replace the fuel filter and the housing and it won’t prime
Same. Thinking it's the old, cracked in-feed line. If not, prolly the steel line to the tank. They now sell an In-tank lift pump which i'd be Highly interested in ~
So will it not start if the water separator sensor isnt hooked up?
Yes
@@Spyke383 when I have fluid spitting out the check valve but not building prime what can that mean?
I don't think that's accurate... I'm having an air incursion problem now, replaced full filter assembly (so it's most likely in the feed line), but the filter that i took off had been on there for a dog's age and the WIF sensor wires had been cut off long before. I've also read that WIF will simply give you a warning, throw a code, but not interfere with running. Not a diesel tech, just passing along what i think i know.... 🤷
I paid $42k for a 3 yr old f250. Why would I cheap out on filters?
I used to be a ford technician if the CP4 fails on a 6.7 power stroke between parts and labor to replace the pump injectors it's about $10000 the little bit more you pay for quality fuel filters to try to avoid that is well worth it
What a f in problem
My 03 loses fuel pressure it feels like after like an HR of towing.. I'll be coming up a hill and it just loses half the power and I'm lucky to keep it ubove 50.. If I stop and sit for a min "feels like the lines pressurize", then boom I can climb mountains doing 80. Just weird.. 03 duramax
There is no lift pump on a lb7, the rely on the CP3 to pull fuel. A lift pump is a great upgrade to a duramax, it puts less strain on the high pressure pump
@@Spyke383 wow thank you so much that's so interesting!! Makes sense why it fixes itself running around town.
@@copeland694 Can also check for collapsed fuel line. Good luck
Video was good but, sound not so much.
I bleed the air out and still wont start.
over compressed the o ring,sucked air
Can you do a video on obd code 1261 and po207 Chevy diesel I’m have a bitch of a time thx
Lb7?
Made in China that's a clue right there. Get a cat filter along with a lift pump and be done.
Hey man who was the first time in my opinion
lift pump primer delete and filter delete done never starve ur cp3
@bannana you speak the truth. People bannana has the proper fix but good luck with that Chinese AC Delco.