My jimmy has a miss and i have just put on a new distributor, distributor cap, rotor button, spark plugs, and spark plug wires and there is still a miss. the new rotor button and distributor cap was just put on about 2 weeks ago because cylinders 1&2 quit firing. what else could cause the miss?
Miss in a 2001 GMC Jimmy w/ V6 Vortec?
- Thread starter hunter
- Start date
Molson02536
New member
A bad CSFI or the poppet injector is dirty with carbon, the fix is to have the carbon cleaned from the poppet injectors and that is done with a machine that hooks up to your shredder valve. The other means of fixing the issue if the cleaning did not fix it would be to replace the the CSFI with the updated MPFI system.
Before we go in to details to with the replacement of the SCFI, try giving the engine a http://www.seafoamsales.com/ treatment and inspect your intake manifold for any leaks through the gaskets making your #1,#2 miss and the wire harness to the CSFI which is located on passenger side in top of the SCFI behind the throttle body.
Good luck and keep us posted.
http://gmcowners.com/gmc-forum/showthread.php?t=13770