PLEASe HELP. Car wont run

[idrivemazda]

I need someones.help and advice. I washed the engine bay yesterday with a pressure hose and dryed everything their after. I started the car to leave the car wash and my car started to.jerk. Next day i turned on to.go.to work.and.car still jerking and will turn off after a seconds of.it.being on. Can someone help and tell me what it might be.

 

[03protolx]

you got moisture into the spark plug cylinders and underneath the coil packs. You need to take them out and replace the spark plugs....and use a heat gun to dry out the coil packs. should be as good as new.

 

[Asudef]

I may have done the same thing but all I did was wash a cold engine with a spray bottle around the valve cover and poured water off to clean the soapy water. Now it will start and as long as I rev it ~2000 rpms it will run but any lower and it stumbles and dies.

Thing is, it drove for 400+ miles after the wash and it was going fine, no problems at all on the freeway. I stopped for gas once and it would idle really rough/low. Second time I stopped for a flat and after starting, it was really rough and nearly died but I kept revving it and it drove ok after.

I thought it was the coil packs too but the auto parts store guy said it sounds like an alternator.

Prior to this, I got had a shop do the valve cover gasket, plugs and wires. Afterwards it seemed to drive great but I'm not sure what the problem is here.

 

[dskelly37]

Check your battery terminals and cables for corrosion. If you have a voltmeter, place it to read volts and set the ground lead on the ground post of your battery and the positive lead onto a nice metal piece of your engine while the engine is trying to idle. You should see 0.5V or less. If it's more than 1.0V you have a bad engine ground some where. I had an 85 MR2 that used to corrode up all the time and have the same issue.