Discuss 1988 Mustang 5.0 HO, no spark on AllFordMustangs.com, the place for Mustang enthusiasts.
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Hey guys, new to the forum. Just picked up a 88 5.0 that the owner couldn't get running.
The car has no spark from the coil. I have power to the coil, I had the ignition module checked and it is supposedly good, I swapped the coil with a known good one, still no luck. I did a search on here and read some posts and I'm leaning towards the pickup coil in the distributor being bad, but before I tear the distributor apart I was wondering if there is anything else simple I should check like relays or fusible links? This is my first Mustang so I'm not real familiar with them, is there somewhere online where I can find a good wiring schematic?
Thanks for any help, hopefully after I get this thing runnin I can start the performance mods, I think it going to be a fun car.
Maybe you should replace the tfi module just to be sure it is good, also check the wires that go to the tfi. Make sure that they are all still intact and not broken. A long shot but maybe the connectors for the wires into the tfi are loose. As far as a spark occuring when you let off the starter I have never experienced this and don't know if it holds any clue to the problem.
When I'm rolling the motor there is absolutely no spark, but when I let of the starter it sparks one time, any ideas would be greatly appreciated, thanks.
That almost sounds like the ignition switch.
I'd try rigging up a remote switch for the starter, which reaches into the car from the solenoid. Then I'd jiggle the key(in the "run" position) as I cranked the starter.
Also, you might remove the cover on the steering column, and inspect the wiring where it plugs into the switch.
'88 GT convertible, 5 speed, 3:08 gears, A9L Mass Air conversion. Mac shorty headers and H-pipe, Magnaflow catback.
same thing happened to me it was the tfi module check it but it might be something different??
12:1 compression 347 stroker fully forged internals, Victor Sr 5.0 EFI Intakes, holley 83mm throttle body, prom 83 mm mass air, 30# injectors, holleyfuel pressure regulator,BBK 1 5/8 Longtube headers,bbk offroad X-pipe, 3 inch MAC Catback,Port and Polished Pro-TopLine Aluminum heads with double spring upgrade,Lunati Cam with 1.7 Ford Racing roller rockers,3:73's,8 point Cage,And new to the family 75 shot Zex Kit
i would change the modual. happened to me and thats what it was.
September 2010. 91 GT hatch - Daliha blacked out. Presented in 2011 LA Auto Show CarDomain.com Booth
New Love 9/24/09 92 GT - Cherry, Torch Red - Presented in Edmundsinsideline.com 2011 5.0 Camparison! Check it out!
RIP 9/02/09 92 Notch - Shelly, White
RIP 2/14/09 91 GT - Tracy, Sliver
RIP Original Motor 10/25/07
RIP 5/10/04 89 GT - Lucy, White
I got it running today, turned out to be a bad connection at the computer, it had an aftermarket chip installed. Took it apart, cleaned the connections and viola. I wish it was that easy all the time, thanks for all the suggestions.
I just picked up a 88 gt and I am having the same exact problem. I replaced the ignition coil, nothing, replaced the tfi module nothing. I was originially getting power to the coil, but now I am not. All of the fuses are good. I tried to jump the solenoid with the key on and still nothing. Could it be a bad distributor? Im not exactly sure how this works but does the tfi module send a signal light to the ignition coil and thats what signals the spark to go from the coil to the distributor? So if the distributor was bad then that would explain why their is no power getting to the ignition coil? Im not too sure on this so if someone with some more experience could let me know, that would be great. Also I tried to put a jumper wire from the battery to the ignition coil and still got nothing. Thanks