random multi cylender misfire?

texanwitharake · #1 (**permalink**) 02-23-08, 01:44 PM

hey the last two days now ive been having some trouble with misfiring its been to the point until the car warms up i cant get any accelleration im going to work on the plugs today is there any thing else i should take a look at to try and solve this problem? p.s. im only at 48000 miles and there are no other problem except that i am running slightly lean. any help would be great

passionaterage · #2 (**permalink**) 02-23-08, 05:44 PM

If you're getting misfires, you should be getting a check engine light and codes. Do you have any?

ariza034 · #3 (**permalink**) 02-24-08, 01:25 AM

tune up time if ur running lean lean is bad can make ur engine go boom hahah but on serious side id recomend you do a tuneup plugs cables and coil

Warez · #4 (**permalink**) 02-24-08, 03:41 AM

Sounds like a failed MAF sensor. The Bosch MAFs fail very frequently.

My car exhibited the same symptoms until the engine warmed up. This occurs because the O2 sensors must heat up before they can correctly read the air-fuel ratio. So during warm-up, the ECM relies on the MAF to set the proper air-fuel ratio, and this of course causes problems when the MAF is failing.

They cost ~$110 at rockauto.com and take about 5-min to replace.