Take it back to who tuned it up, ask them if they cleaned the throttle body. Ask then if they gapped the plugs before they put them in. Did they put the sparkplug wires back on tight? Take it back and tell them you are not happy with their work and don't take it from them until it is right. Ask for a copy of EVERYTHING they did in their tune up. egr valve or eps sen
Hopefully you got the timing marks lined up? What else did you add? Plugs? Were they gapped properly? Wires? Are they on tight? What exactly is "other things"?
If the 1993 Mercury Villager runs rough when the check engine light comes on and the code reader says 34 and 51, there is a problem with an oxygen sensor and the MAP (Manifold Absolute Pressure) sensor. Both parts together will cost around $200.
Brake light switch needs adjusting or replacing. It is too sensitive.
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.
my 1990 300zx is idling rough what could cause this?
Motor is idling rough.
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
a longer cam shaft will make a car idle rough
You dont you replace the timing control module
I would suggest a new set of plug wires.
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?
Scan for codes, some parts store do it free.
On a 1996 you will have OBD2 which means a repair shop can hook up a scanner and read codes and tell you exactly what is wrong. That will eliminate the GUESSING and save you money by not installing parts you DO NOT NEED.
Belt is probably not timed correctly.
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
Check all of the plug wires. Make sure they are all routed correctly, and on tight. If that is all good then perhaps the timing belt is off by a tooth or two.
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.
The most classic symptom is erratic or rough idling.
why is my ford sport trac run rough at idling. Being that the check engine light is on, start with having the codes read. Your local auto parts store can help with that at no cost.
Mercury is made up primarily of rock,helium,hydrogen,dust,dirt, and ice.
mite be the icv (located near the rev cable) that needs cleaning i had same problem idling around 400 and sometimes cutting out a carb cleaner will clean it