SPONSORED LINKS

Misfire?

Tiny
MY02TAURUS
  • MEMBER
  • 2002 FORD TAURUS
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 108,000 MILES
No codes on scanner however, I have a light misfire, rapid fire if I kick it down on a hill. But it's there but not constant. Again, it's not throwing a code. Is this mainly a vacuum leak? I just got the car, and it appears it still has factory plugs and wires. Any help would be great. I thought I had it when I replaced a vacuum hose yesterday. But it's back today. Thank you anyone and everyone. Chuck
SPONSORED LINKS
Friday, June 23rd, 2023 AT 10:41 AM

5 Replies

Tiny
MATHGEN
  • MECHANIC
  • 128 POSTS
I have experienced this issue many times. Here is an excerpt from a TSB. Even though the bulletin states the issue will occur above 3,000 RPMs, I have had it happen under medium to hard acceleration as low as 2,500 RPMs.

Some 2000-2003 Taurus, Sable, Ranger vehicles equipped with a 3.0L 2-valve gas or FFV engine may exhibit a buck/jerk/miss during drive cycles above 3,000 RPMs with no diagnostic trouble codes (DTC's). A possible cause is the camshaft synchronizer assembly. Since the camshaft position (CMP) fault monitor is not active above 2,500 RPMs, no diagnostic trouble code (P0340) is set during the drive concern, thus making it difficult to diagnose the root cause component.

The recommended repair is to replace the camshaft synchronizer.
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Friday, June 23rd, 2023 AT 11:08 AM
Tiny
MY02TAURUS
  • MEMBER
  • 4 POSTS
Thank you. That will be my next repair. Have a good day.
Was this
answer
helpful?
Yes
No
Friday, June 23rd, 2023 AT 12:49 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,468 POSTS
MATHGEN is one of our best! You have a good day as well.
Was this
answer
helpful?
Yes
No
Sunday, June 25th, 2023 AT 3:51 PM
Tiny
MY02TAURUS
  • MEMBER
  • 4 POSTS
Thank you.I got it fixed.
Was this
answer
helpful?
Yes
No
Sunday, June 25th, 2023 AT 6:05 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,468 POSTS
Can we ask what the problem was?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, June 25th, 2023 AT 6:05 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links