Forum: Diagnostics & Troubleshooting

My middle son has been using my Denali for the last few months. I got it from him today to get the oil changed and give it a much needed bath. Come...

Can't find the hardware for the idler pulley no were, not even on gmpartsdirect Any one know were to find this stuff with out bothering the junk...

Hey, I just did the intake swap and I'm getting a REP code and a TB. The truck won't start. How can they be cleared? What could be causing it? I...

After 1200 miles on my lq9 swap my engine developed a metallic tick. The sound only becomes noticeable around 190-200 degrees. My thoughts were a bad...

Need a good radiator repair company fast its averaging 110 & i caught something in my radiator causing a small crack. Any suggestions? Or sound i...

My 06 Tahoe(5.3,6inch lift on 35" tires) has an issue with the brakes engaging while driving down the road.It will flash service stability and apply...

Hello, I have a '95 C1500 with a 5.3L swap. I kept the R4 style compressor and mounted it via a Josh Powers bracket. Today I put on a brand new...

I really hope someone can shed some light on this situation for me. I just got done rebuilding a vortec 5.7 and have no oil pumping up to my rocker...

I have a 01 Silverado with the 4.8l V8 and a 5 speed manual transmission. Ever since I got her she does a strange thing where if I shift into neutral...

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...