1987 Ford Mustang cranking up then stalling

AHLESTER01

MEMBER
1987 FORD MUSTANG

Ok I am in a really desperate situation, my 1987 ford mustang 5.0, 302, lx, will crank up for about 30-60 seconds, and then die and will not crank up because it looses spark, it has fuel no fuel problem, but will not crank up and looses spark, is this my pcm? Or something else?

5 Replies

CATCH_15

MECHANIC
250 POSTS

When you say it cranks up do mean that you try to start it for 30-60 seconds or that the idle raises for 30-60 seconds and then the car dies?

Was this

answer

helpful?

Yes

No

Thursday, November 30th, 2006 AT 2:10 PM

AHLESTER01

MEMBER
3 POSTS

No it cranks up for 30-60 seconds then stalls

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Friday, December 1st, 2006 AT 11:24 AM

1BIGG1

MEMBER
61 POSTS

Does it actually lose spark. Youve pulled a wire and checked for spark?

Was this

answer

helpful?

Yes

No

Sunday, December 3rd, 2006 AT 8:24 PM

AHLESTER01

MEMBER
3 POSTS

Yes it does lose spark completely, we tried a new ingnition control module, distributor, coil pack, none of those worked and still no spark

Was this

answer

helpful?

Yes

No

Wednesday, December 6th, 2006 AT 1:46 PM

CARUNDELL

MECHANIC
602 POSTS

Hey ahlester,
Those older fords where notorious for wiring harness/connector issues, additionaly the relay that powers up the pcm have issues too and may be "dropping out" causing your lack of spark AND those relay connectors also get very corroded too (greeny meanies!)

Regards,

Chris