1996 GMC Sierra 1500 4x4 5.7............... when in low gear between 2500 and 3000 rpm it starts poping and skiping...... it just has started this, and only in low, what could it be?

1996 GMC Sierra 1500 4x4 5.7............... when in low gear between 2500 and 3000 rpm it starts poping and skiping...... it just has started this, and only in low, what could it be? 1 Answer

I have a 2015 GMC Sierra with only 4000 miles on it and it makes a rattling noise when it starts then when it hits 210 on temperature it stops the noise what could be the issue 15 Answers

It only does it in the mornings and it sounds like something is either loose or just vibrating against other metal. I have no problems with the truck or from what i can tell it just makes that annoy...

My 92 GMC 1500 Automatic runs strong from a stop in 'Open Loop'. In "Closed Loop' it runs very lean, low power and stuttering. If I keep my foot in it, at about 2500 RPM it pulls strong again. 1 Answer

I have replaced the O2 sensor, MAP sensor, TPS, EGR valve, plugs, wires, cap & rotor. I measured the Temp sensor & its in range cold & hot. I also added a performance chip to the ECM. If I disconnect ...

Iv got a 98 gmc 1500, just put a new jasper 350 in the other day and cant get started. i have fuel, compression, and spark, i know i have to time it with the computer once its started. but i cant get it started. any ideas? im sure i have it timed right, but also this distributer does not have the timing markings. 6 Answers

1998 GMC 1500 sierra 5.7 350

started stalling and dying when in gear 105 Answers

350 motor 4L60E trans Motor wants to stall while in gear (but doesn't do it out of gear once over 1000 rpm it dosent) seem to stall and it is only from a dead stop. Fuel filter has been replaced an...