93 e150 transmission problem
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93 e150 transmission problem
I have a 93 e150 with a 5.8l and E4OD tranny. Having issues once I drive more than 40 or 50 miles or so, or sometimes if I am driving hard, into a headwind or pulling a trailer etc. The trouble is, the transmission seems to pull so much power from the engine that it won't hardly run, wont pull the vehicle and doesn't idle well. The only thing I was able to find online about this was that it could be an issue with the EPC solenoid and or its wiring. Does this sound right? if I replaced that should that fix the problem or a I looking at a more serious issue? After the vehicle has had time to sit form an hour or two it will usually start driving normally again.
Any help is appreciated.
thanks.
Jared
Any help is appreciated.
thanks.
Jared
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Joined: Jun 2017
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https://www.becontrols.com/ourfaqs/e...1.htm#08199832
This is where i found that.
"I have a 1990 f-150 2wd with a 5.0 engine,with a e40d trans. The od light started blinking and when put in any gear the engine sounds like it is missing a few cylinders. I scanned the computer and came up with a code 99 ecp circuit failure. Any help with what could be wrong would be greatly appreciated. Thank you, Steve
That would probably be an EPC circuit failure. If this circuit fails line pressure should go to full at all times. The full line pressure puts a good deal of extra load on the engine, and will usually effect the idle. It is especially noticeable if your engine is already in need of a tuneup. You will need to check the electronic pressure control solenoid and its wiring. Either of these could be causing the EPC code. "
This is the info i found.
My od light doesn't blink tho. Never had this trouble in any vehicle before, could it be vapor locking then or what? I've never had an issue with an engine that would just go away after setting for an hour or two.
This is where i found that.
"I have a 1990 f-150 2wd with a 5.0 engine,with a e40d trans. The od light started blinking and when put in any gear the engine sounds like it is missing a few cylinders. I scanned the computer and came up with a code 99 ecp circuit failure. Any help with what could be wrong would be greatly appreciated. Thank you, Steve
That would probably be an EPC circuit failure. If this circuit fails line pressure should go to full at all times. The full line pressure puts a good deal of extra load on the engine, and will usually effect the idle. It is especially noticeable if your engine is already in need of a tuneup. You will need to check the electronic pressure control solenoid and its wiring. Either of these could be causing the EPC code. "
This is the info i found.
My od light doesn't blink tho. Never had this trouble in any vehicle before, could it be vapor locking then or what? I've never had an issue with an engine that would just go away after setting for an hour or two.
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
https://www.becontrols.com/ourfaqs/e...1.htm#08199832
This is where i found that.
"I have a 1990 f-150 2wd with a 5.0 engine,with a e40d trans. The od light started blinking and when put in any gear the engine sounds like it is missing a few cylinders. I scanned the computer and came up with a code 99 ecp circuit failure. Any help with what could be wrong would be greatly appreciated. Thank you, Steve
That would probably be an EPC circuit failure. If this circuit fails line pressure should go to full at all times. The full line pressure puts a good deal of extra load on the engine, and will usually effect the idle. It is especially noticeable if your engine is already in need of a tuneup. You will need to check the electronic pressure control solenoid and its wiring. Either of these could be causing the EPC code. "
This is the info i found.
My od light doesn't blink tho. Never had this trouble in any vehicle before, could it be vapor locking then or what? I've never had an issue with an engine that would just go away after setting for an hour or two.
This is where i found that.
"I have a 1990 f-150 2wd with a 5.0 engine,with a e40d trans. The od light started blinking and when put in any gear the engine sounds like it is missing a few cylinders. I scanned the computer and came up with a code 99 ecp circuit failure. Any help with what could be wrong would be greatly appreciated. Thank you, Steve
That would probably be an EPC circuit failure. If this circuit fails line pressure should go to full at all times. The full line pressure puts a good deal of extra load on the engine, and will usually effect the idle. It is especially noticeable if your engine is already in need of a tuneup. You will need to check the electronic pressure control solenoid and its wiring. Either of these could be causing the EPC code. "
This is the info i found.
My od light doesn't blink tho. Never had this trouble in any vehicle before, could it be vapor locking then or what? I've never had an issue with an engine that would just go away after setting for an hour or two.
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