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92 F250 stumbles on deceleration
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cb
New User
Apr 15, 2012, 11:37 AM
Post #1 of 11
(3157 views)
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92 F250 stumbles on deceleration
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92 F250 4x4 5 spd jerks back and forth when letting off throttle to slow down in lower 3 gears. 225,000 miles on this 460.
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nickwarner
Veteran
/ Moderator
Apr 15, 2012, 6:29 PM
Post #2 of 11
(3107 views)
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Re: 92 F250 stumbles on deceleration
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Run the KOEO and KOER tests and post back with the codes. Also pop up the distributor cap and see how eroded the terminals are. When was your last fuel filter change? That truck is about the easiest one to change and around 12 bucks for the part.
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slotruck
New User
Apr 26, 2012, 10:15 PM
Post #3 of 11
(3052 views)
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Re: 92 F250 stumbles on deceleration
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On my 6.2 L Chev diesel I had a problem where the truck would buck and surge, mostly on down compression. Sometimes called "trailer hitching". Truck would sometimes just quit running even on the freeway in the laters stages of the disease. Really nasty. Turns out it was just a one way air leak in a rubber fuel hose on top of the fuel tank. Air would leak in, but fuel would not leak out. Diagnosed the problem by putting a clear hose in the fuel line with an inverted loop. After idling a while you could see the air builting up in the loop. Don't run it this way on the road as the clear hose likely will not stand the engine heat and could cause a fire. Good Luck!
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Apr 26, 2012, 11:09 PM
Post #4 of 11
(3051 views)
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Re: 92 F250 stumbles on deceleration
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What does a Chev have to do with that Ford? Start your own post with your specifics not jump on another,
T
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slotruck
New User
Apr 27, 2012, 8:04 PM
Post #6 of 11
(3028 views)
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Re: 92 F250 stumbles on deceleration
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Maybe you and Hammertime muisunderstood. I don't care if it is a chevy or a ford or a gas engine or a diesel, if you are getting air bubbles to the injectors, the truck will surge and buck. Am I wrong about that? Just thought the information might be helpful. Sorry
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Apr 27, 2012, 8:08 PM
Post #7 of 11
(3025 views)
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Re: 92 F250 stumbles on deceleration
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Well it's pretty rude that everyone on this thread gets a notice of a reply made that has nothing to do with original poster,
T
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slotruck
New User
Apr 27, 2012, 8:15 PM
Post #8 of 11
(3021 views)
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Re: 92 F250 stumbles on deceleration
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Sorry, I didn't mean to be rude, but the OP said that his truck was jerking and stumbling, so the response was directly related to his problem! I don't know if that is his problem, but it could be, so I don't see what is rude. And again, do you think air bubbles getting to the injectors will not cause problems?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Apr 27, 2012, 8:23 PM
Post #9 of 11
(3016 views)
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Re: 92 F250 stumbles on deceleration
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I know you are new here but a Gas Ford and Chevy diesel don't share much,
T
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Discretesignals
Ultimate Carjunky
/ Moderator
Apr 28, 2012, 7:58 AM
Post #11 of 11
(2997 views)
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Re: 92 F250 stumbles on deceleration
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It's possible you could get air into the fuel delivery system from an air leak ahead of the fuel pump. It's not something that happens very often unless your running out of fuel from an empty tank or the pump is external and sucking air in from an air leak in the inlet hose. Besides if air was being pushed into the fuel rail, you would see drive-ability problems not just on deceleration.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Apr 28, 2012, 8:02 AM)
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