Question about 1987 Ford Mustang

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1990 Ford Mustang Start Problem

My 1990 Mustang cranked but did not start last night. I tried everything I could think of but to no avail. This morning before work I tried and it started right up. I'm now afraid to drive it for fear of getting stranded. Anyone have an idea? Thanks!! I own a 1987 Ford Mustang 5.0. For the past 3 days i noticed that it took a little longer for my car to start up.Normally it fires up right away.When it finally starts it was runnin real bad.It would idle fine but you could not give it much gas.If you did it would bog down and back fire.You would really have to baby it for several miles and then all of a sudden it would clear up and run fine until you shut it off and it would start all over again.Yesterday I was on the interstate and the car was running fine.I was rolling along about 70mph and went to pass a car.As soon as I hit the gas pedal it back fired several times and started bogging down.I had to exit off the interstate because I could only give it a little bit of gas.I took it easy and finally got it back home.I shut it off untill the next morning and now it want fire up.It's getting fuel and fire to the motor but will not crank up.I tryed a spray of starter fluid and got nothing it didn't even spurder.I was told that it was probably the timing chain and gear.I was told that since the engine had been modified and it was probably the original timing chain and gear that the chain was stretched out or a tooth on the gear broke.I would like a second opinion or maybe someone else has had the same problem.Any suggestions or comments will be greatly appreciated.Thank You

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Ok... if you want to save a boat load of cash, DO NOT go to a dealer... they will tell you what you already know and start replacing every thing until they find the problem.and then charge you for parts that didnt need to be replaced to begin with. I also own an '87... and had the same problem... it turned out to be ..the ignition module.. it's located on your distributor , just below your dist. cap. it' a $40 part from NAPA. You can EASILY replace it within 10 minutes. HOWEVER you will need the "special tool " it costs about $4 dollars. Make sure you have some bright colored nail polish or a paint stick handy to mark the position of the distributor. YOU WILL PROBABLY BE BETTER OFF WITH A TIMING LIGHT . Not neccessary but just to make sure your timing is right on.

1) Un plug ignition module.

2) Loosen distributor hold down bolt.
Enough so you can move the distributor

3) Turn distrbutor counter clockwise enough to get the"special tool" into the holes to remove the TWO screws.

4) DO NOT pull ignition module out. It is plugged in.
Push module down towards the floor until it releases.
Then take it out.

5) Clean off contact area on distributor (thats the flat area that the module was pressed up against) with brake cleaner or electrical parts cleaner, etc.

6) Apply the greasy stuff that came with your new module to the contact area of the module.Just put it on there with your finger.

7) Place the module back into position .
REMEMBER to slide it UP.

8) Tighten the TWO screws back up using your newly accuired "special tool"

9) Plug the wiring harness back into the the module.

10) NOW this is the part you will either find easy as pie or hard as hell..Hope fully you marked the position of your distributor with the paint stick or nail polish. If you did . Match the marks back up , and you should be good to go .

****** If you didn't mark the position it's ok...*******
(if you have a timing light) The factory setting is 10 should see the white mark THATS TEN DEGREES.....
it has a removable dead end connection .thats the spout connector. DO NOT LOSE IT .

Posted on Jul 05, 2008

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2 possibilities:

1. Stuck carburator valve maybe???

2. Have you checked the battery, alternator, and/or the voltage regulator? Have you changed the air filter? What about having a tune-up--when was the last time you had a tune-up? If all else fails, take it to an authorized Ford dealer and have the service professionals look at it since they're trained to service your vehicle and can pinpoint the problem, advise you, and fix the problem. It could also mean there's a short somewhere under the hood. But, check the alternator first, then the battery, voltage regulator; tune-up next, then, Ford service techician. Good luck!

Posted on Jun 23, 2008


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