i have a 93 mustang 302 that i changed the valve cover seals/spark plugs/wires on, and now it will crnak but not start. i checked the firing sequence, and all vacuum lines. Anyone have any other ideas?
Pull the SPOUT out and see if it fires then. More than likely the TFI went Kaput, or the Pick up Coil is Kaput. This is all assuming you have everything else correct
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89 Coupe
302- Canfield 195's, Comp Cams 1.6rr, Jay Allen Custom Grind, Systemax Intake, 75mm TB, 75mm Pro-M. 24lbs Injectors, Underdrives, Hooker Super Comp headers, 4.10's
I removed the throttle body and plenum so I could gain access to the valve covers. The only wires/harnesses I removed were the ones for the throttle body/egr, and cold air intake. I have checked all of those to make sure.
i checked and I am getting voltage to the coil and did not change anything with the timing. it does backfire if I try to give it gas when starting it, but i have triple checked the firing sequence according to the manuals.
Backfiring is more times than not a timing or firing order issue. If its back firing, its sparking......... So unless you have a major vacuum leak, you need to make sure the firing order is 13726548
cylinders are
back
4 8
3 7
2 6
1 5
Front
And make sure they are on the Cap the same way they come off, which if its wrong then you have already forgotten the correct location. You can try walking all the plug wires one spot left from where they are now, if that doesnt work. Walk them one spot right from the spot they were from the original spot before you walked them to the left.
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89 Coupe
302- Canfield 195's, Comp Cams 1.6rr, Jay Allen Custom Grind, Systemax Intake, 75mm TB, 75mm Pro-M. 24lbs Injectors, Underdrives, Hooker Super Comp headers, 4.10's
I used the manual to verify the locations for the wires, and tried moving them 1 spot in either direction, but still no joy. i can't see any lines disconnected to give me a vacuum leak. would the EGR being bad cause it to backfire and not start?
find ur #1 cylinder tdc, and then start with the wires in the order 89 gave u. What I do is to get #1 tdc and then take out dist and put it back in with rotor pointing at the #1 cylinder and go around from there.
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1988 GT Vert 70K
BBK Fender Cold Air, Ford E303, Cobra Intakes, Kirban Adj Fuel Reg, FRPP 65mm TB, 19# Explorer injectors, MAF Conversion, TF Valve Springs, BBK Equal Length Shorty's, KYB's all around, Magnaflow 2.5 high flow cats H pipe, American Thunder's, 3.73's, Speedo gear, AOD w/Performance Automatic street/strip valve body, Overdrive A+ Super Servo, 2-3 Accumulator upgrade, Urethane motor and tranny mounts, Smog, EGR and A/C delete
I have a '93 Mustang convertible 5.0. It has been garaged for a long time and has 20K miles on it. Normally, I start it and allow it to run for a while, but the last time I tried to start it, she would not start and run. I haven't begun to troubleshoot the problem. I suspect the fuel pump, but I'm not familiar with common problems of this model. Any suggestions would be helpful. Thanks.
Do you here the fuel pump prime? May have to get by the gas tank and let someone turn the key on so you can listen.
Thanks, 89Coupe. I haven't done any troubleshooting yet. Just trying to get some ideas about the best place to start and the most likely cause of the problem.