Questions & Answers for: GMC Sierra happens car jumps timing chain

...timing chain. Aim a timing light at the crank marks and see if they are staying in the same place, or jumping around. If they are jumping your timing chain may have jumped, or be badly worn, and will ...

troube code retreaval can someone tell me what prongs under the dash for a 2004 sierra pick up to jump to retrieve trouble codes You shouldn't need to jumper anything; there is a standardized ...

My electric side mirror on the drivers side jumps when I try to adjust it is there a way to grease it or do I have to replace the whole thing,also how do i remove it to get access Thanks brian My ...

1991 Sie rra GMC AC control problem When you select ac on the control panel the compressor clutch will not engage. The AC light on the panel comes on and flashes on and off for a short time and ...

...TIMING CHAIN AND GEAR ASSEMBLY.INCORRECTLY INSTALLED DISTRIBUTOR 1 TOOTH OFF IN EITHER ADVANCE OR ****** POSITIONS. CODE PO300 MULTIPLE ENGINE MISFIRE DETECTED CONDITIONS.THIS CODE WILL SHOW UP WHEN ...

...timing chain.To check,align the timing marks on your harmonic balancer with the timing pointer.Take off the distributor cap and look at the rotor,it should be pointing at the #1 spark plug ...

...timing chain, not timing belt.These chains obviously last much longer than belts.These last till about 200,000 miles, then you start experiencing chain tensioner slap, then it's time to replace that ...

truck stil want start got a new fuel pump, spark plugs, relay and the my truck will still not start. i have a 96 gmc truck did you check for spark to the plugs?...if you have spark check the timeing ...

...is either in the cap or mounted on the intake manifold.If the truck has over 100,000 miles the timing chain could be off.  A timing light would tell you. sounds like your map sensor is fauty

THEN IT DIED ON ME ... WHAT HAPPENED UNDER MY 1989 GMC SIERRA , THEN IT DIED ON ME ... WHAT HAPPENED Did you open the hood? It could be a popped serpentine belt or a broken timing chain or timing belt