1995 Mercury Cougar Car misfires around 1500-2000 rpms.

1995 MERCURY COUGAR
51,400 MILES • V8 • AWD • AUTOMATIC
Avatar
COUGARCHASER
  • MEMBER
  • 2 POSTS
Okay well the title pretty much sums it up. I was wondering if this could be a blown head gasket. This usually happenes when goosing the accelarator a little bit. As well a when the car reaches 30 mph and 50-60 mph. If this is a possiblity, ive looked online and found a TSB: 98-7-4 which is Engine gasket sealer. I only found it on a couple of 'unofficial' sites and not on the safecar.gov.

Also, are there any other 'common' reasons for a car to misfire?

Thanks
Nov 5, 2010 at 1:14 PM
Advertisement
Avatar
RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:

1.Defective spark plug
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Manifold absolute pressure sensor
Nov 6, 2010 at 7:04 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.