backfire & power loss
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New User
Joined: Aug 2003
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From: NC
backfire & power loss
Truck is a 91 F-600 with a 370. Has backfired since I bought it 3
years ago. Can't figure it out. Gets worse by the day. Air pumps are sucking. I also tried to by-pass air pumps with a one inch hose between the two manifolds, no luck.
Also, power loss this week. Empty runs great till about 3200 RPM
or 65 MPH and starts to back off and sputter. Loaded, 20,000 Lbs.
and it wont run much over 40 MPH and falls back and sputters.
Fuel filter was rusty, replaced and filled tank with water remover and MMO. Replaced Ignition Module and by-passed governer, still no luck. This week I'll try plugs, wires, cap and rotor.
Any suggestions would be greatly appreciated.
Thanks,
Brian
years ago. Can't figure it out. Gets worse by the day. Air pumps are sucking. I also tried to by-pass air pumps with a one inch hose between the two manifolds, no luck.
Also, power loss this week. Empty runs great till about 3200 RPM
or 65 MPH and starts to back off and sputter. Loaded, 20,000 Lbs.
and it wont run much over 40 MPH and falls back and sputters.
Fuel filter was rusty, replaced and filled tank with water remover and MMO. Replaced Ignition Module and by-passed governer, still no luck. This week I'll try plugs, wires, cap and rotor.
Any suggestions would be greatly appreciated.
Thanks,
Brian
New User
Joined: Sep 2003
Posts: 4
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backfire & power loss
Sounds like an ignition related problem. If you have never replaced any one or all of the following, one or all could cause your problem. Listed in order of most likley to least likely.
[quote from bbuchanan] I'll try plugs, wires, cap and rotor.
I'll add - Module, coil, and battery. (including bad connections on the primary side of the ignition syatem)
[quote from bbuchanan] I'll try plugs, wires, cap and rotor.
I'll add - Module, coil, and battery. (including bad connections on the primary side of the ignition syatem)
Thread Starter
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New User
Joined: Aug 2003
Posts: 2
Likes: 0
From: NC
backfire & power loss
As of today, truck left my boys stranded on the highway for a while. We nursed it back to the shop and went over my list of "to do's."After lunch went back to check on it and the distributer shaft was wobbling in the bushing. Still putting back together, but I seen the shaft, it was loose.
I orderd a new body style Dodge with a 360 in 1994, ran great,
when it would run, 2 months later and a lot of factory reps figured it out. Brass bushing that the distributer shaft went threw
was oblong (egged). backfired and would not run just like out of fuel. Seems to be same problem. We let you know tomorrow.
Thanks,
Brian
I orderd a new body style Dodge with a 360 in 1994, ran great,
when it would run, 2 months later and a lot of factory reps figured it out. Brass bushing that the distributer shaft went threw
was oblong (egged). backfired and would not run just like out of fuel. Seems to be same problem. We let you know tomorrow.
Thanks,
Brian
