Question about 1988 Ford Thunderbird

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My 1988 ford thunderbird 2.3l turbo wont stay running when its warm seems like its not getting gas but the fuel filter has been change and the fuel pump was tested.when it does start in the cooler weather it will still cut out while driving then suddenly kick back in and drive fine.i've checked PCV valve and vacuum lines but everything seems fine.i've heard that it may also be the main relay.any help would be greatly appreciated.

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  • mrbill964 Apr 27, 2010

    i change the ect but it didnt change anything.any other ideas?



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Could be thermostat partially opening only quarter way,what happens is......your coolant sit's in radiator and stay's cool and the other half is warm in engine then it will transit when you accelerate (pushing that sudden change of temp in coolant to your Ect and then your knock and Ect send a derastic message to your brain saying advance and rich out ,I found out the hard way, IT LICK"S MAN!! put stat in boiling pot of water and watch it open and how far is the tricky part,it may open....****!!!!! with restrictive and tricky results to your ECT,the port in your thermostat was designed for a certain gph and in lamen terms set as timing for flow ratewhen you cruise it bucks or what the start kinda running over 2200rpm then bam! then back to chitty land! right???

Posted on Jun 19, 2010

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A bad signal from the ECT (engine coolant temp) sensor has been known to cause all sorts of fuel issues in computer controlled vehicles. Since your issue is based on temp, I would start there. You could always try unplugging the ECT to see if it changes the way the car acts. If the sensor is good, your car won't change, if the sensor is bad, the car should start better.

Posted on Apr 23, 2010

  • Brad Kirby
    Brad Kirby Apr 27, 2010

    I did have this issue before on my car. The MAF (mass air flow) sensor was bad. It was undriveable. Unplugging the MAF made the car driveable but rough. I replaced the MAF and it solved my issue.



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