Questions & Answers for: vortec idle

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...vortec 4.3 idle revs up and dont come down motor starts and revs up so high i have to shut off motor,note when cold, will idle for maybe 10 min,if that, any help thankfull check your Throttle ...

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(95 Gmc Sierra idling problem- Rebuilt vortec block with Tbi heads.) I bought a truck witch latter died on me. I had a vortec block lying around pulled form a 96, So i pulled my Tbi motor out and put ...

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...vortec blazer wont idle after its warmed up my 95 4.3 vortec blazer runs mint for the first 5 mins then when i pull up to a red light my truck idle it just stalls and doesnt wanna run after that ...

Question about 1997 K1500

1 Answer

Miss at idle 97 350 VORTEC,1500 Pickup,runs fine above idle,but has a miss at idle. just increase idle rating slightly...this will definitely solve your problem...

...vortec 4.3 that shakes sometimes it shakes when stopped at a light or on idle sometimes i changed the plugs, wires, cap rotor, and fuel filter hoping to solve the problem but it still persists any ...

Question about 1996 Sierra

1 Answer

...vortec 305 will not start . truck has new pump ,plugs cap,rotor,wires but runs rough at idle also new fuel regulator .motor will not start now, and kicks back on starter. will the cpi unit cause it ...

Question about 1999 Silverado 1500

1 Answer

1998 Chevrolet 5.7 Vortec Problems. I have a 1998 5.7 vortec and the check engine light stays on and sometimes even blinks when driving. It also misses when idling. While accelerating the miss goes ...

...vortec is having a high idle issue once in awhile about 1200rpms sitting still in gear holding the brake what is wrong with this thing? I can be problem with IAC valve or motor,or there can be vacuum ...

...4.3 vortec increase rpm at idle THIS IS NOT RECOMMENDED, IF YOUR IDLE IS TO LOW CHECK YOUR IDLE AIR CONTROL MOTOR, THIS IS WHAT CONTROLS IDLE SPEED. THEY OFTEN GET DIRTY AND CANNOT METER AIR ...

Question about 2002 TrailBlazer

1 Answer

...idle on 4200 vortec You have an inline six engine and it is equipped with engine-mounted electronic Powertrain Control Module that records hundreds of measurements per second and makes immediate ...

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