Rough Idle only when engine is warm?

Discussion in '1993 - 1997 Ford Ranger' started by Amp94.0, Oct 20, 2017.

  1. Amp94.0

    Amp94.0 New Member

    I have a 1994 Auto. 4.0 with 270K miles. Around 10 years ago I noticed if I would drive somewhere between 25+ miles and would recrank my truck within a 30-45 Min time frame I would very rough idle. After about a minute the engine/RPMs will gradually increase and all is fine and drives well. Now, what happens is I have the rough idle and my truck dies almost instantly until I recrank and give it a little gas and it eventually will even out and drive fine. I have replaced the oxygen sensors and cleaned the IAC, MAF, Throttle, intake, Air filter within the past 2 months. I replaced the fuel filter several years ago and it still did this after I replaced it. Anyone have any ideas what my issue may be? No check engine or codes as of yet. Thanks!
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  3. Dchad53

    Dchad53 Member

    I tried cleaning my MAF for a rough idle and stalling. It did not help. I finally bought a new MAF.
    All was well after that. I guess some times they just go bad. Cleaning doesn't help. See if a buddy
    will let you swap MAF,s to trouble shoot.
    Amp94.0 likes this.

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