2003 monte carlo 3.4 133,000 skips on start up. Code said skip #1 cyl. Changed coil pack,plugs,wires,injector #1 fuel pump/filter changed 40,000 ago. Skips worse when sits for a couple days. Rev up engine it goes away and is good for the day.
I'd suspect a sticking injector--car should have set the check engine light. Read the code(s) to progress further. If the coil pack were a problem, it would not be likely to fix itself. If the codes indicate an injector problem, try an injector cleaner in the fuel--worst case, replace the bad injector. The codes should indicate which cylinder to change the injector.
SOURCE: truck skips
timing chain may be bad put the cylinder on #1 up to the top and make sure the timing marks on the front pully is pointing to the fromt timing mark o degrees next pull #1 plug pull distributor cap and move the fan back and forth watch the rotor if it takes time to move then you have a badtiming chain. if not try replacing the oil pressure switch behind and below the distributior.
SOURCE: my 99 blazer s10 wit 4.3 engine at idle lopes or
replace the electric part of the ignition down on the steering colum ....u will have to drop the steering colum down but not totaly remove...fixed 2 s-10 trucks same year that way
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Looks like no one has an answer for this. The Dealer doesn't have a clue what to do to fix it?????? H E L P PLEASE!
Code said skip #1 cy. Changed injector,wires,plugs,coil pac. Fuel filter changed 40,000 ago. Nothing has worked? Need help with this one!
Looks like this has stumped everyone. The way the gas is now a days, Could the filter need to be changed again?
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