6.2l Banks Turbo - Stalling and Power Loss When Hot
#1
6.2l Banks Turbo - Stalling and Power Loss When Hot
I checked around for similar issues before I posted this but my set up and problem seem unusual.
I have a GMC 6.2l with a Banks Sidewinder turbo on it. I love this truck since it gets me to the middle of nowhere easily and gets good enough mileage to get me back out. However lately...
When I start it up, it starts and runs fine. Then, after about 15-20 on the street and about 5-10 on the freeway, it starts to lose power and will eventually stall. The amount of time before this starts has decreased over time, starting at a couple of hours to where it is now. Once it has stalled, I can usually start it up once or twice but eventually, it will not start at all. I then have to wait for 20 minutes or so and, after turning over for a while, it will start with a puff of white smoke (it doesn’t do this normally).
Finding a diesel mechanic in my area is next to impossible but the one I did find hasn’t had any luck in tracking down the problem. At this point, he has checked the fuel filters, replaced the aftermarket electric fuel pump between the filters, replaced the injector pump as well as checking for air leaks.
The fuel filters were replace fairly recently as were most of the hoses.
Help! I don’t even know what direction to go in at this point.
I have a GMC 6.2l with a Banks Sidewinder turbo on it. I love this truck since it gets me to the middle of nowhere easily and gets good enough mileage to get me back out. However lately...
When I start it up, it starts and runs fine. Then, after about 15-20 on the street and about 5-10 on the freeway, it starts to lose power and will eventually stall. The amount of time before this starts has decreased over time, starting at a couple of hours to where it is now. Once it has stalled, I can usually start it up once or twice but eventually, it will not start at all. I then have to wait for 20 minutes or so and, after turning over for a while, it will start with a puff of white smoke (it doesn’t do this normally).
Finding a diesel mechanic in my area is next to impossible but the one I did find hasn’t had any luck in tracking down the problem. At this point, he has checked the fuel filters, replaced the aftermarket electric fuel pump between the filters, replaced the injector pump as well as checking for air leaks.
The fuel filters were replace fairly recently as were most of the hoses.
Help! I don’t even know what direction to go in at this point.
#2
Next time after you have that issue you should pour a cool bottle of water on the IP if truck runs better It is the Injector pump, and it's not said enough but run 2 stroke oil in the fuel a 1/2 to 1 ounce per gallon of fuel.
Ultra low sulfur diesel is hard on the injector pumps in a 6.2/6.5l
Ultra low sulfur diesel is hard on the injector pumps in a 6.2/6.5l
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RatsMC (04-15-2015)
#4
#5
Well, I paid a awful lot for a new IP so I really hope it was replaced. It looks like they remove the intake and hoses and crap so, if they were trying to scam me on the part, they put a lot of work into it. I'll take a careful look at it when I get home.
The fuel cap was the first thing I thought of and I experimented with leaving it loose and off with no change.
The fuel cap was the first thing I thought of and I experimented with leaving it loose and off with no change.
#6
Assuming the lift pump (mechanical or electrical) is operating properly, sounds more like fuel restriction, possibly a clogged fuel strainer inside the fuel tank..
Let me see if I cant provide you with GM's 6.2L Diesel Engine Student Handbook.
6.2 Liter Diesel engine 386 page PDF
No substitute for the proper FSM but far more informative if not more helpful than Haynes, Chilton and other unauthorized publications combined.
Suggest you download it to your PC, before it disappears too..
Let me see if I cant provide you with GM's 6.2L Diesel Engine Student Handbook.
6.2 Liter Diesel engine 386 page PDF
No substitute for the proper FSM but far more informative if not more helpful than Haynes, Chilton and other unauthorized publications combined.
Suggest you download it to your PC, before it disappears too..
Last edited by HeavyChevy95; 04-08-2015 at 06:19 PM. Reason: add student handbook link
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RatsMC (04-15-2015)
#7
#9
#10
All set to replace the tank and sending unit and then I broke my wrist and ankle.
I am going to try to get that done this weekend with some help.
I am wondering though, does the sending unit or strainer make sense if it only happens after the truck has run for a while (10-20 minutes)?
I am going to try to get that done this weekend with some help.
I am wondering though, does the sending unit or strainer make sense if it only happens after the truck has run for a while (10-20 minutes)?