Question about 1987 Ford Mustang
FORD USED A THICK FILM IGNITION ( MODULE ) " TFI " . IT SOMETIMES JUST GOES BAD AT ONCE AND THE CAR WONT START AT ALL. HOWEVER FOR THE STRANG TIMES IT WILL START AND ONCE THE HEAT OF THE ENGINE GETS TO THE POINT OF OVERHEATING THE "TFI" IT WILL MAKE THE IDLE RUFF/BAD THEN THE ENGINE STALLA UNTILL THE "TFI" COOLS DOWN THEN IT WILL START AGAIN. THE PART IS ABOUT 80 DOLLARS AND YOU WILL NEED A DEEPWALL 5.5mm SOCKET TO CHANGE IT. IT IS ON THE SIDE OF THE DISTRIBUTOR, YOU WILL NEED TO MARK THE DISTRIBUTOR ITSELF WITH A REFERENCE TO THE MOTOR THEN UNTIGHTEN THE 13mm BOLT THAT KEEPS THE DISTRIBUTOR TIGHT. TURN THE DISTRIBUTOR SO YOU CAN ACCESS THE BOLTS TO THE "TFI" ONCE YOU SWAP THE "TFI" ALIGN THE REFERENCE MARKS YOU MADE AND TIGHTEN THE DISTRIBUTOR BOLT.
ANOTHER QUICK TIP IS TO MAKE SURE YOU ARE MAINTAINING AT LEAST A MINIMUM OF 30PSI FUEL PRESSURE.
Posted on Nov 11, 2008
SOURCE: Rough idle
Jeep has been having a problem with this. i take it u have a 4.7L or a 3.7L. when the when to fix this problem they should of replaced all the valves (intake and exhaust). theres a tsb on this and the dealer can look it up. even if you paid for the service they will fix it for free cuz it wasn't fixed the first time. take it back to the them and tell the to read the tsb and fix it right.
Posted on May 15, 2008
SOURCE: rough idle stalls at low rpm's
hello first check your idle with the car running foot on brake see were your rpm reading is if your below 500rpm check your label underhood for your curb idle setting second see if theres a adjustment screw you can increase were your gas cable lever rest against your set screw underhood if you feel confident enough remove your iac motor idle air control valve if the bore were the end of the pintle extracts out to close has varnish builup our carbon it will stick creating vacuum leak type senario causing stalling rough idle sometimes even no start conditions good luck
Posted on Sep 18, 2008
Try checking your Spark plugs (they MUST be the right type, clean, and properly adjusted: and try adjusting your timing. Either or both of these could cause this type of problem Hope it helps. If so, don't forget to rate the answer, will you?
Posted on Dec 13, 2008
check for black smoke at exhaust. stuck choke.... clean with carb. cleaner. could need adjusted. possible stuck float. no quick fix. diry fuel filter. replace.
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
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