Check your coil packs, my Corsica goes thru them like water. Would not hurt to check your fuel pressure. Online tech manual at Alldata.com can really help out if your interested.
If you have replaced plugs and wire most likely one of your coil pack usually run about $50
Rough idling is whenever the vehicle's motor "misses" or does not fire causing an imbalance and a loss of rotation reducing the motor's power and causing excessive shaking.
Rough Riders of Cheyenne - 1945 is rated/received certificates of: USA:Approved (PCA #11146)
my 1990 300zx is idling rough what could cause this?
Motor is idling rough.
I would recommend checking for codes before you do anything else.
Rough idling and hesitation can be caused by several different things. The most common causes are; bad spark plugs, bad spark plug wires, and a dirty air filter.
My 1986 Honda Accord Dx just started idling rough and dieing at turns and stops it is a carburated 2.0 witha maunal transmission
if it is a vortec, there is a fuel line under the upper intake that goes from the manifold to the injector. check it for cracks and leaking or the injector itself. EGR Valve
a longer cam shaft will make a car idle rough
I would suspect the idle speed motor is faulty. Does the motor sometimes idle fine and then other times rough? They are about $100.00 last time I had priced one. Your dealer can price one and print out a picture of it and where it is located so you can recognize it.....1930fcoupe
You dont you replace the timing control module
At 35mph it runs rough. Also when idling it will quit running, sometimes. Does that sound like I need new spark plugs? How many miles are new plugs & wires good for?
if your tailpipe is pouring smoke then you have internal engine problems and need to take it to a mechanic or you need to change your oil
Scan for codes, some parts store do it free.
I had the same problem ,if you did it go back and recheck and check again ,mostly the distrib cap ,plugs and wires. If you went to a pro ,take it back and have them review their work. Hope this helps ,good luck!
Belt is probably not timed correctly.
Means you should have bought a Chevy.
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. Spiritchsr1
It feels rough, really rough.
Rough idling and sometimes kills the motor. It could also trip the check engine light to come on.
Poor performance on takeoff ... rotten gas mileage ... rough idling ... hard starting.
if it's idling rough, I would suggest cleaning the throttle body with carburetor cleaner.