Question about 1988 Ford F 150

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My 1988 F 150 has a dying problem. Sometimes when I stop at a traffic light the truck will die. I have replaced the fuel pumps, the tps, normal tune up parts. I have had the injectors cleaned, the trans flushed. To top off everything the local Ford garage can not find anything wrong with the truck. I get a check engine light on a regular basis that comes and goes. I think that it in the emissions system. I just don't know where to start and don't want to waste money I don,t have. Thanks Don

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  • don_lancaste Jun 17, 2009

    The truck will immediately restart and run fine. Occasionally it will smoke a little bit after starting. Don

  • don_lancaste Jun 17, 2009

    Thank you for your advise. I will try your suggestion asap. Don

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First thing you need to do is when it stalls out, determine what it's not getting (fuel or spark) then once that's been isolated you can do some testing to determine why. If emissions system isn't working properly it can influence running...check and find that problem as well.

Posted on Jun 17, 2009

  • Richard Scordino Jun 17, 2009

    The emissions system includes the egr valve which can put unwanted exhaust into the fuel mixture at the wrong time which will cause stalling. In giving repair advise, you have to understand that I can't see or hear or do any testing on your vehicle. Any repair shop that would do a repair without any testing would soon find themselves out of business. I suggest that you have a code scan done (most larger parts stores do this free) Use those results added to what you already know to locate the problem. I suggested that you check after it stalls because that is when locating the problem is generally best...(a sensor that is working when tested running does not always show up as good when it is in a "no start condition") Unfortunately, yours starts back up right away (you didn't say that 'till your second post ) Till you can narrow down the actual problem, everything is suspect. But, again...fix what you know is wrong first!

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