help 5.0 gt

  1. K

    rebuild kit suggestions/help??

    ok SO I have a 91 fox gt and I'm needing to rebuild the engine. I'm curious as to if I need to buy a specific rebuild kit (I may need pistons and the whole shebang) for my year, or if I can use a more popular engine year like 1989. I've looked on summit and CJ pony parts and it seems that...
  2. opihinalu

    What is this thing?

    What are these things? Sorry for the vague question I don't know much about cars. As you can see the first image is right above the place where you add oil. The second image is on the passenger side in the very top closest to the window. The mysterious item in the second image seems to be broken...
  3. A

    Engine 1990 Fox wont rev over 3500 RPMS

    Hey guys, I am new to the StangNet forums and I am helping a buddy work on his 1990 Mustang Foxbody 5.0. He purchased the car a couple of months ago and we have been working on this issue occasionally in the evenings. Heres the problem: The car starts and drives fine, with no idling issues...
  4. N

    Progress Thread 1984 mustang gt350 will not start

    My mustang stopped starting and did absolutely nothing I found out that if I put my key in the on position with the clutch safety switch jumped I can start the car through the starter solenoid and it will run but there is a yellow with green wire that I am assuming goes to the ignition maybe...
  5. M

    Fuel Fuel Gauge stuck on full no matter what

    I bought my 1987 5.0 convertible in March. Since the day I got it, it's been stuck on full even though I've been driving it a lot. What could the problem be?
  6. 5


    I drive an '89 Mustang GT automatic I got in a front end collision last year and the damage went all the way to the fan, completely dented the radiator support. I replaced all necessary parts, fan radiator, ac condenser, welded front end back on and put in a new front bumper and hood. The car...
  7. 8

    Engine Turbo fox build hot start issue

    Hi new to the page and in desperate need of some guidance. I have a 89 fox 5.0 with an on3performance turbo set up and for the life of me cannot figure out my hot start issue. Car has 60lb injectors, 340lhp fuel pump, new high torque starter, new coolant temp sensor, new plugs, wires, cap...
  8. C

    92 fox 5.0 won’t fire, pump issue?

    What tells the fuel pump to shut off after priming? When I cycle the key on, The pump turns on and never shuts off. Bad pump? 1992 mustang GT 5.0 Will fire /Run on starting fluid has spark, correct plug order Ignition switch replaced Has 40 or so psi at the rail Injectors are getting 12v off...
  9. D

    Electrical 88 5.0 Tach diagnostic help

    First post here. I’ll get straight to business. I have a 1988 5.0 Im currently restoring and the tach is dead. I have removed the whole harness during the resto and gone through it from the ecu to the engine. The tach only moves when cranking the engine to about 100-200 rpm. I have tested the...
  10. J

    1985 mustang gt 5.0L carb (M) serial code engine wiring harness and under dash wiring harness

    hey I have a 1985 mustang gt carbureted and someone before me chopped up the wiring under the hood and dash, really need help finding a new harness so I don't have to keep dealing with this nightmare electrical situation, should I take it to ford or a local mustang shop or an auto electrical...
  11. E

    Engine Fox mishimoto radiator

    IM NEW.TO FOXES BEFORE SOMEONE START JUDGING Ok so i ordered at pepboys a new mishimoto radiator cuz mine is leaking, mine currently have a 3 row mishimoto radiator but since i wasnt the one who bought the radiator the warrany doesnt cover it, well to keep on the story, i.went and ordered a new...
  12. L

    88 gt wont start unless sprayed with starting fluid

    88 gt small cam crane cams coil, exhaust etc etc. Wont start without starting fluid has new iac valve tps and is a mass air flow car was converted by previous owner, runs rough upon starting wandering idle smokes a bit then will make a suction noise and and the idle smooths out and doesnt smoke...