1989 Ford F-250 Rough Idle Then Dies

FORD F-250
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SEAPRO
  • MEMBER
  • 1 POST
HI I HAVE A 1989 FORD F250 351 WHEN FIRST STARTED IDLE FINE AFTER ABOUT TWO MIMUTES START ROUGH IDLE THEN DIES PULLED THE VAPOR CANISTER PURGE SOLENOID HOSE OUT OF INTAKE IT THEN IDLES OK COULD IT BE THE PURGE SOLENOID OR THE IDLE AIR CONTROL VALVE OR SOMETHING ELSE THANKS FOR THE HELP
Jul 24, 2006 at 3:34 AM
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TAURUSWHEEL
  • ✓Experienced Mechanic
  • 718 POSTS
Any codes?? Check engine light won't necessarily be set by some issues.. does it happen only on a cold start or after it's been sitting for a while???/ Idle air controls I think can be cleaned out, you could try that... possibly the purge valve is stuck open or the circuit that controls it is.. check for codes
Jul 24, 2006 at 9:47 AM
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Suggested Repair

Scan for trouble codes, clean the idle air control valve, and check whether the vapor canister purge solenoid or its control circuit is stuck open.

Conversation Summary

A 1989 Ford F-250 with a 351 idles normally at first start, then runs rough and dies after about two minutes. Removing the vapor canister purge solenoid hose from the intake restores a normal idle. The expert asked whether it happens only after a cold start or sitting, noted that a check engine light may not set, and recommended checking codes, cleaning the idle air control, and inspecting a possibly stuck-open purge valve or its control circuit.

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