Forum: Diagnostics & Troubleshooting

Just got this Tahoe for the engine. The security light is flashing and will not crank. It has fuel and spark. I have good grounds on the ones I...

So my truck has a very slight (I would describe it as a misfire) but it is was less dramatic than this stumble. I tried replacing my factory spider...

2004 Yukon xl 2wd vin z Okay guys I am stumped on a skip I have it started a few weeks ago. Skip started out mild and now so random. It’s...

engine light was on ,started noticing my truck when i first get on the gas it backfires through the cold air intake real loud kind of embarrasing...

I repowered my 2005 suburban with a built up 6.0L and installed a 4L80e. Reused the harness an Neutral Switch as well. Once everything installed I...

I am swapping (first time) my 1993 OBS 2WD to a 2001 GMC 6.0 ls with 4l80e. Just wondering what O2 sensors I need to buy for my long tube headers...

Ok 2018 Tahoe 5.3 When you accelerate there is an intermittent tapping noise coming from the driver side (engine bay??). The dealer replaced the...

HÃm đổi số thÃnh chữ trong excel không cần cÃi đặt phức tạp Mình có sÆ°u tầm và chỉnh sá»a thÃnh 1 form excel có sẵn...

Công ty má»›i má»›i thÃnh láºp năm 2021 cần chú ý các thủ tục kê khai thuế vá»›i CÆ¡ quan thuế quản lý và các cÆ¡ quan khác có...

Doanh nghiệp má»›i má»›i thÃnh láºp năm 2021 cần chú ý các thủ tục kê khai thuế vá»›i CÆ¡ quan thuế quản lý và các cÆ¡ quan...

Hey guys been away a long time. We got finished rebuilding the LQ4 in my son’s ‘99 Silvy 2500. when I say rebuild, it was a FULL rebuild including...

I have an 08 silverado the dod ate a lifter so I decided to swap out the 5,3 for a lo mile 6.2 with a small btr cam .The truck ran for a few days...

I have been trying to track down a "Multiple Random Misfires" code P0300 since I got my truck a month ago, ignition is all new(does have upgraded...

Yes, I've searched and couldn't find a suitable thread, so here goes: My fuel pressure is reading 72 psi at idle and I need to know how to get it...

can the steam line on 5.3 hook up to over flow on radiator

I’m helping a friend with an ls swap in a 93 truck. The engine will fire up and run fairly well but when you switch the key off the engine keeps...

Hi all! New to the forum! I think this is the right spot to post a question regarding my 2015 Sierra 6.0 vortec? I have the L96 engine with VVT...

2000 Silverado 5.3L 2WD 1500 RCSB w/ ~165Kmi - all stock Fuel pressure still just under spec after new pump and more... I replaced the fuel pump...

Finally got my 4.8l Vortec conversion to start - but it will absolutely not idle and dies unless I keep foot on the throttle. Getting a strange IAT...

My 05 Silverado is throwing codes P0120, U0107, P0220, P0446, P1516 Have replaced throttle position sensor and wiring harness. Ran good for a few...