Hesitation in # 3 (high gas consumptio)
09-14-2006, 10:18 AM
#11
3rd Gear Member
Join Date: Jan 2006
Location: Deerfield, VA
Posts: 674
RE: Hesitation in # 3 (high gas consumptio)
Maxm,
Misfires can be caused by mechanical problems too. Do a compression test on the engine make sure comp is OK throughout all cylinders. Other possibilities, torn/leaking intake gasket on #3 intake port causing abnormal A/F ratio on that cyl, on that note also check for vacuum leaks. There aren't too many other causes left. Advice: in the future if you suspect a plugged injector, swap the suspect injector with the next adjacent injector and see if your misfire "moves" cylinders. It will save you $80. !
John
Misfires can be caused by mechanical problems too. Do a compression test on the engine make sure comp is OK throughout all cylinders. Other possibilities, torn/leaking intake gasket on #3 intake port causing abnormal A/F ratio on that cyl, on that note also check for vacuum leaks. There aren't too many other causes left. Advice: in the future if you suspect a plugged injector, swap the suspect injector with the next adjacent injector and see if your misfire "moves" cylinders. It will save you $80. !
John
09-14-2006, 01:16 PM
#12
5th Gear Member
Join Date: Jan 2006
Posts: 2,504
RE: Hesitation in # 3 (high gas consumptio)
+ 1 on the compression test, but it could also be that the problem is fixed but rings are fuel washed causing a drop in compression and fouling out the plug almost immediately. so get the compression checked and then we can go from there.
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