Hot start problems

[WhatDoesTheFoxSay?]

My 91 fox suffers a tad from hot starts. Couple notes:

• Battery is relocated in the trunk with 1ga cable running to solenoid. Connections are clean and solid
• Battery is brand new w/875CCA
• Starter is two years old
• I'm using shorty headers

I notice it most when the car has been driven for 45-1hr. It's fine to zip around town and short trips.

I've read some posts that replacing it with a 92/93 starter can help solve these issues since they're smaller?

I've read that creating a heat shield could help (I like this idea...)

I could wrap the headers...

Wondering if anyone here has a working solution.

Thanks!

[svo1990mustang]

A failing TFI module will cause hot start problems as well

[hsousa88]

A failing TFI module will cause hot start problems as well
Or it won't start at all :(

[svo1990mustang]

Or it won't start at all :(
True as well

[ZR]

Does it

-turn over and won't fire?
OR
-not turn over or turn over too slow to fire?

[WhatDoesTheFoxSay?]

It's a sloooow cranking and then will fire. Sometimes it's just really slow and won't fire at all... almost like a battery that's bit the dust...


Does it

-turn over and won't fire?
OR
-not turn over or turn over too slow to fire?

[84ragtop]

my 84 is doing the exact same thing

[ZR]

Ok so it's a cranking not a starting issue.
Do you have a matching ground cable, from battery to chassis + from chassis to engine up front?
If yes and your sure all connections are clean, update to mini starter is suggested. Also suggest (since battery is in the trunk), your main cable goes directly to from the battery to the starter. Use your original solenoid to starter to cable to supply power to the front of the car (switch to opposite terminal on the fender mounted solenoid). Use the original solenoid trigger wire to switch your new starter, done.

[b1lk1]

I have longtubes and a mini starter (from a later model Mustang) completely cured my hot crank issues. Wired my starter as ZR stated too, took seconds really, lol.

[WhatDoesTheFoxSay?]

Thanks, Rick.

The only challenge I'm facing then, is running power directly from the battery to the starter. It's a bigazzz 1ga cable. I know your suggesting this so, if I avoid doing so, would I simply hook up the new starter the same as the old one?

Jeff


Ok so it's a cranking not a starting issue.
Do you have a matching ground cable, from battery to chassis + from chassis to engine up front?
If yes and your sure all connections are clean, update to mini starter is suggested. Also suggest (since battery is in the trunk), your main cable goes directly to from the battery to the starter. Use your original solenoid to starter to cable to supply power to the front of the car (switch to opposite terminal on the fender mounted solenoid). Use the original solenoid trigger wire to switch your new starter, done.

[b1lk1]

If you are not wanting to move your power cable then just tap into the trigger wire and run a wire to the trigger on the starter. There is not a big amp draw there, something 12-14 gauge should be fine. Connect the starter power wire as you have it now.