1990 mustang rpms cut in and out then car dies and wont start back after driving about 20 minutes

10

Asked by sdb6b May 21, 2015 at 03:55 PM about the 1990 Ford Mustang

Question type: Maintenance & Repair

replaced TFI module and ignition switch
drive to work in the morning fine but has done the same thing at about the same place 4
days in a row after work

4 Answers
1,145

Glen answered 9 years ago

Is this a V8? or V6? or a 4 banger? If you do not have a EEC-IV tester get one. 1990 is too old for OBD II tester. If it is throwing codes it may point to the problem. A coil failure is possible but so are several other possibilities. My '89 GT had a misfire while accelerating that turned out to be faulty O2 sensors. It once had a cut-out problem that was a bad switch box. The tester should help narrow the culprit.

Mark helpful
46,415

Michael answered 9 years ago

Had a similar issue on my 89 gt, it ended up being the throttle position sensor.

1 people found this helpful.
Mark helpful
10

sdb6b answered 9 years ago

V8 no codes. idles fine no misfiring it runs fine until it cuts out it cut out on me at the same place on the way home from work in the after noon which makes me think it has to do with something getting hot because it does it in the after noon but not in the morning on the way to work

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Mustang

Looking for a Used Mustang in your area?

CarGurus has 1,259 nationwide Mustang listings starting at $4,995.

Postal Code:

Shortcuts

Search Ford Mustang Questions

CarGurus Experts

  • #1
    Gene Arnett
    Reputation
    3,160
  • #2
    Bob Beaman
    Reputation
    2,690
  • #3
    rst429
    Reputation
    2,640
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $10,500
Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used BMW 3 Series
71 Great Deals out of 1,176 listings starting at $1,995
Used BMW M3
8 Great Deals out of 90 listings starting at $15,995
Used Honda Civic
180 Great Deals out of 3,705 listings starting at $1,995
Used Toyota Supra
62 listings starting at $51,977
Used Honda Accord
40 Great Deals out of 910 listings starting at $1,599

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.