20 Most Recent 1987 Ford Mustang Questions & Answers


make sure the air filter is intact and clean, the engine needs to breathe
do you have fuel pressure?
how about spark, do you have a good spark ?
change plugs and wires

1987 Ford... | Answered on Nov 07, 2017


Get a can of spray Silicone and spray the channels that the glass runs in, soak it good and then operate the windows to distribute the Silicone, that should help, if no then the window regulators may need to be lubed at the pivot points. DO NOT GET THE SILICONE ON THE PLASTIC TRIM PARTS, USE MASKING OF SOME SORT.

1987 Ford... | Answered on Apr 05, 2017


I f you've checked your fuses/fusible links then it's most likely the headlight switch is shot/melted on the backside of switch. I've replaced mine twice and a few times on other mustangs 1987-1993. To remove the switch you will need 2 small Flathead screwdrivers, there are two locking tabs on the side of the switch that must be pressed in at the same time pulling out towards the rear of the car will get the switch out. Then remove the switch from the tab or tabs holding the switch to the harness. Inspect wiring and connectors for damage. Replace in reverse I've attached a picture of replacement part. Good Luck

1987 Ford... | Answered on Aug 21, 2016


Common Fox Mustang issue related to this condition would be a faulty coil,ignition connection under steering wheel melted,faulty or the TFI Module on the Dizzy. I would start with the TFI 9 times out of 10 this is the culprit. Be sure to replce it with a motorcraft as Ive had bad experinces with aftermarket TFI modules right out of the box. I've attached a photo of the TFI module below. Good Luck Ryan MN
vehicle-cranks-but-will-not-start-no-vxb10dyvyx02p5zpbdgq5v5x-3-0.png

1987 Ford... | Answered on Aug 21, 2016


I'm leaning towards your TFI module on the Dizzy. They get hot from engine and are a known issue by ford. I included a picture of what the TFI or ignition module looks like in your Stang. Be sure to tell the store clerk if you have a auto or manual when you purchase one Good Luck Ryan MN
1987ford-mustang-replaced-alternator-aqaa0puwxusnvnuiqyeabbpl-2-0.png

1987 Ford... | Answered on May 13, 2016


It could be the T.F.I. MODULE / IGNITION MODULE its located on your DIZZY. I've bought these brand NEW and had them not work. There are a known issue with these late model Fords.
1987gtfordmustang-replaced-alternator#solution-section-zi0u4kzo02vuv2s4hfmw5dtf-1-5.png

1987 Ford... | Answered on Oct 31, 2015


pump either on way out --bad ground --relay -connection corrosion bad circuit

1987 Ford... | Answered on Sep 30, 2015


If you got the factory tires on the car, its printed on the tire, also in owners manual, and on door jam, what ever is printed on tire is what P.S.I the manufacturer requires no matter if its factory or not.

1987 Ford... | Answered on Jun 26, 2015


Replace your fuel pump relay these are do go out once your car hits the 20 yr mark. under driver seat. look for a relay similar to the relay circled in my picture
know-bad-fuel-pump-k5fgebdp3xrdohjxkmwn3gmh-4-0.jpg

1987 Ford... | Answered on Feb 04, 2015


most likely if you have to jump it then your battery is not good or your baterry connections arent good or ground from battery to chassis isnt good or combination of either... Good Luck

1987 Ford... | Answered on Jan 23, 2014


is your car using carborator if yes clean it and try to replace your air filter sometime dirt sack the air and lot of gas consume

1987 Ford... | Answered on Aug 29, 2013


Hi Randy, If there is no movement when shorting the electrical cable to the body, it seems there is an open circuit between the gauge and sender unit. The problem is wiring. Regards John

1987 Ford... | Answered on Apr 21, 2013

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