The most common cause of rough idling would be a bad or clogged fuel injector. Also look for the hose on your EGR valve. They tend to come off in hot weather. If the hose comes off the engine will definitely run rough. I had to put a small hose clamp on mine to keep it from comming off.
my 1990 300zx is idling rough what could cause this?
There are several things that can cause your 1993 Nissan 300 to idle rough. The most common cause is dirty spark plugs. Bad spark plug wires can also cause the problem.
Yes it could and it will cause rough idling and a missing when giving it gas.
yes it is possible
I had a similar problem and it was my coil pack
water in the fuel can cause an idling motor to sputter and/or die.
Here is a link to a service bulletin that might help. http://www.fcsdchemicalsandlubricants.com/fad/tsb/031515.pdf Randy
a longer cam shaft will make a car idle rough
I would suggest a new set of plug wires.
if it's idling rough, I would suggest cleaning the throttle body with carburetor cleaner.
old fuel filter
Yes, it could.
Replace the spark plug wires, that would be my first guess.
The radiator cooling fan is most likely not working.
It would if the battery voltage was lowered enough to cause it not to fire.
The most likely cause of a 1992 Ford Aerostar stalling while idling is bad spark plugs. The plugs should be changed and the timing checked to resolve the problem.
Could be your timing belt.
have they check the timing on it. sometimes when timing is off by a few degrees it would cause both rough idle and backfiring. also check for a dead cylinder.
Could be low of lubricant. Have the level checked. Also can be a clutch throwout bearing problem.
what would transmission not to shift in to overdrive
i had a similar problem with my 92 ford escort Lx and it took me about 2 months to figure out that all i needed to do was 2 replace the pcv valve try 2 replace it it worked on mine. I hope this works
Its idling rough because you probably have a blown head-gasket and lost compression at two cylinders you need to remove all spark plugs and check each cylinders compression.