1987 will not run
Thread Starter
|
Mountain Pass
Joined: Oct 2004
Posts: 157
Likes: 58
From: Georgia
1987 will not run
I sold this Bronco to a friend and it ran well for about a week when it lost power and died. Now all it will do is crank but not start, if you pump the throttle it will attempt to start, if the throttle is not touched all it does is crank.
Codes thrown:
31
67
81
82
Work done:
New EGR (there was a code for EGR)
New FPR
New fuel filter
New plugs, wires, cap and rotor
There is 50 psi at the Schrader valve
There is spark at the plugs
There was also a code for the VSS which is currently removed awaiting the correct one
Is it possible that the TPS is bad even though a code has not been thrown? I am wondering because when the throttle pedal as pumped the engine at least attempts to start.
Thanks all, for any advice you may have...Jeff
Codes thrown:
31
67
81
82
Work done:
New EGR (there was a code for EGR)
New FPR
New fuel filter
New plugs, wires, cap and rotor
There is 50 psi at the Schrader valve
There is spark at the plugs
There was also a code for the VSS which is currently removed awaiting the correct one
Is it possible that the TPS is bad even though a code has not been thrown? I am wondering because when the throttle pedal as pumped the engine at least attempts to start.
Thanks all, for any advice you may have...Jeff
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
50psi at the shrader is to much. should be 39-41 max so you may have the wrong fpr on there. pull the plugs, how do they look? are you positive you have the plug wires on the right plug, ive done that a few times. whats your timing set at? should be 10*btdc with spout connector removed. check out www.fordfuelinjection.com on how to test the TPS. the VSS will not affect anything but rear abs which is a joke and if it doesnt work wont hurt a thing.
what brand plug are you using? check for vacum leaks as well.
what brand plug are you using? check for vacum leaks as well.
Thread Starter
|
Mountain Pass
Joined: Oct 2004
Posts: 157
Likes: 58
From: Georgia
50psi at the shrader is to much. should be 39-41 max so you may have the wrong fpr on there. pull the plugs, how do they look? are you positive you have the plug wires on the right plug, ive done that a few times. whats your timing set at? should be 10*btdc with spout connector removed. check out www.fordfuelinjection.com on how to test the TPS. the VSS will not affect anything but rear abs which is a joke and if it doesnt work wont hurt a thing.
what brand plug are you using? check for vacum leaks as well.
what brand plug are you using? check for vacum leaks as well.
Tuned
Joined: Sep 2005
Posts: 250
Likes: 11
Take the ignition control module off the distributor and have it checked. The parts store I work at does it for free(O-Reilly) This can cause a no start condition. Also the FPR opens up and the fuel flowing through it goes in the return line to the tank. If it's not opening or not opening enough you will have a high fuel pressure at the schradder valve since it relieves the pressure the fuel pump produces to keep the correct pressure in the fuel system.
Last edited by Bimmerboy1989; Nov 9, 2006 at 11:35 AM.
Post Fiend
Joined: Jan 2004
Posts: 5,377
Likes: 2
From: Elkhart IN
If theres spark, find out if its at the right time. Get a bottle and some gas and squirt some down the intake, see if it runs. if it does without any backfires ect, then no fuel. if pops fires, ect then timeing is off, or the timing set jumped.
Thread
Thread Starter
Forum
Replies
Last Post
dndgee
1999 - 2003 7.3L Power Stroke Diesel
12
Feb 12, 2024 06:05 PM
captcaseyb
1987 - 1996 F150 & Larger F-Series Trucks
35
Jun 25, 2016 11:57 AM
