87 EFI 302 wont start
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New User
Joined: Apr 2004
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From: Taylor Mi
87 EFI 302 wont start
My Bronco wont start! its getting gas and spark,ive replaced the intank fuel pump(wasnt pumping to specs) the pressure regulator, sparkplugs,fuel filter,TFI mod... i just did a fuel pressure test and im getting 40psi chiltons say 35 to 45 is right HELP!!!!!
Senior User
Joined: Mar 2004
Posts: 182
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From: Canada
Well, there are alot of possibilities to cause this problem. Here are a few you can check. 1) Battery discharging- engine turning over too slow; check battery terminals. 2)Excessive moisture or damage to ignition components. 3) Wrong plugs - gap etc. 4) Distributor loose, causing timing to change or timing is just off in general. Theres probably more things to check, the only other thing I can think of is your not getting air - plugged filter; throttle body not working. Or possibly on the fuel side of things - clogged injectors but thats a long shot, not very likely. I don't know if any of this helps, you might try replacing spark plug wires and/or checking to make sure you've got the wires in the right firing order?? Just some suggestions!! Good Luck!!!!
Senior User
Joined: May 2003
Posts: 135
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From: Florida
Make sure coil wire is connected well...
Test Your ICM Ignition control module.
Read chapter in your book on ignition system...
and those litte wires the run to the ground on battery must be connected or she wont run at all....
Test Your ICM Ignition control module.
Read chapter in your book on ignition system...
and those litte wires the run to the ground on battery must be connected or she wont run at all....
New User
Joined: May 2002
Posts: 11
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From: Seattle Area
Did it just up and die?
or was it running before you changed fuel pump, the pressure regulator, sparkplugs,fuel filter,TFI mod?
or was it running before you changed fuel pump, the pressure regulator, sparkplugs,fuel filter,TFI mod?
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New User
Joined: Dec 2003
Posts: 6
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From: Oklahoma City
87 efi
Check the fusible links near the solenoid. You may have one burnt out. We replaced the tank fuel pump on our 92 Aerostar, and it turned out to be a defective transmission overdrive sensor. We had to disconnect it to keep from burning out the new link. Happy Hunting!
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