sounds to me like you probably have a bad o2 sensor, take it to an autozone near you and they will run a diagnosticon it for you and don't worry its free that's right no charge for this test.
i have had this problem before also, it could be that one of the spark plugs is roasted. test your spark plugs. one way to find out if it is the spark plug is to see if the car/engine vibrates when in neutral.
One of the main causes of feeling a vibration in the gas pedal is engine vibration. The vibration from the engine causes the accelerator cable or linkage to vibrate and the vibration can be felt in the gas pedal. Check with a mechanic to be sure.
usually what causes this type of problem can be a or the engine mounts but because it is in a certain speed you should go check your tires for the appropiate balance
Most likely they are engine mounts. As for the loud engine, check the exhaust.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
A quick way to reset the check engine light would be to disconnect the battery for a short while
replace the o2 sensors should do it.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Bad Spark plug and Bad Spark plug wires could make Engine Vibrate; If the Car is too old and has been running in country roads or farms then better check the engine mount bushes.
If you have a "check engine" light on, start with having the codes read. A misfire code can tell you which cylinder or cylinders are having problems. A misfire could be the cause of your engine vibration.
If your check engine light is on then check for the code and find out whats its about. It can also be a short in the wiring harness.
first check engine timing this is a major cause of vibration in a stationary vehicle, or non firing cylinder could be electrical or mechanical, then harmonic balancer, then look for broken engine mount.
Bring to auto parts store for scanning -- most will do this free