Sign up for FREE! Become a GM-Trucks.com Member Today!
In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience.
By austin jez
Hello all. I have a 2013 silverado w/5.3l flex vin 7. Basically has rough idle in park and drive. Very poor acceleration. Almost seems to bog down when trying to accelerate. It will occasionally surge and for just a split second I can feel a bit of power. Also doesn't want to downshift when I lean on the gas pretty heavy. I've got to do near floor it to get it to down ****** and when it does it will drop down 2 gears a lot of the time. No engine light and it won't set any codes. Showed 0 misfires on all cylinders. Long Fuel trims usually in single digits negs. Fuel pressure 43-46psi at idle and highway. I've replaced throttle position sensor, Accelerator pedal position sensor, manifold pressure sensor, mass air sensor, plugs, coolant temp sensor, oxygen sensors. Fuel pump, intake manifold gaskets twice (now with "updated" steel gaskets), throttle body gasket/seal, injector o-rings (upper and lower). Tested all coils for strong spark. Smoke tested for vac leaks along with propane. It has never failed to start or even had a long start and has never died/stalled. I'm just kinda at a loss at this point. Any help will be appreciated and possibly considered. Thanks
By Justin Berg
1993 gmc sierra v8 5.7 k just replace both exhaust manifolds and thermostat and housing. When I got vehicle distributor cap wasn't tjghend down have the replacement but when I drive it over heats uses coolant not leaking it but poof gone , no white smoke?
By Humberto Alvarez
I have a 2004 GMC Sierra 4.3 and lately it's been like losing power when I'm driving down the road it acts as if it stalls and I pump the gas pedal and it turns back on or regains power. I have replaced the fuel filter, fuel pump, speed sensor, mass airflow sensor, spark plugs and also cleaned the throttle body. Do y'all have any idea what could be causing my truck to be acting like that?
Thanks for the add. Greetings All!! 👋
Going to start my membership, by asking what I hope is an easy question.
On an online site, they have a deal on a power retractable tonneau cover that I really like, (like same price as non-powered), but I also just installed a Weather Guard tool box.
My hope/want is that I can put the retractable canister in back of the toolbox, (tailgate side) and then mount my onboard air tank under it, with the compressor in the toolbox.
Finally my question is; will the electric cover stop at my tailgate automatically? I understand I have to cut the rails to accept the canister in the different location, but the cover stopping in the correct stop has me guessing what other mods I’ll have to do.
please help ASAP, as I do not know how long this deals gonna last. Thank you!
2018 GMC Sierra Denali 3500hd
Recently Browsing 0 members
No registered users viewing this page.
Who's Online 49 Members, 0 Anonymous, 3,519 Guests (See full list)
- Thomas McCoy
- Walter Choptij
- David Henderson
- Nicole Stotts
- Dave Mcpeek
- Tim Myers
- Wayne Black
- Steve Perkins
- Mario Paradis
- Greg Fili
- Danny Shortino
- Tae Williams
- Mike Laue