Ford Transmission :: 1994 F150 - C6 Too Hot On The Highway?
Mar 11, 2014
I did a C6 swap on my '94 F150 4x4 recently to replace the M5OD the previous owner burned up. Just to check on things I hooked a brand new autometer trans temp gauge up to check out the temps. What I'm worried about is that on the highway (60-70 mph) it climbs up to 210*.
This was at night at about 75* outside temp. I know the C6 doesn't have a lockup converter, but these temps seem kind of high. It's not a heavy truck, not towing anything and I'm running stock sized 235's with 3.08 gearing.
For now I'm just using the internal radiator trans cooler, but I have a large factory bolt on cooler from an F350 of the same year that I plan on putting on. I have the gauge sender in the drivers side test port just in front of the shift linkage. I'm also running a deep pan that adds 2 quarts to the system.
View 4 Replies
Advertisement
I got a funny shifting issues that happens infrequently that I can no figure out. It happens after driving the car for a while on the highway, but not every time, and not just on the highway.
Here is my problem... when cruising down the highway the check engine light will come on stay on for a around a minute, the the check engine light will turn off, then of which my truck will lose power, not accelerate no matter how much I stomp on the gas, until my speed drops to under 55mph.
Once I get down to 55mph the truck will drop 2 gears into 3rd gear and then I can accelerate back up to speed. This will repeat every few miles. The computer will not store the check engine code, so no codes are pulled.
View 7 Replies
My 94 F150 has been actingup lately with the 4r70 transmission not shifting into 3rd gear or above. I replaced the MLPS sensor and re pinned the plug as per the instructions with the switch.The old sensor had the plug on the side, same type of plug, but wires indifferent spots. Truck wouldn't start like that, so repinned to match the instructions. I couldn't get the neutral mark to 100% line up as there is not enough adjustment, but it is very close.
The old plug had
32-298-140-33
57-199-359-463
I switched it to
57-359-199-463
33-140-298-32
Then tried
463-359-199-57
33-140-298-32
Truck still won't shift to 3rd, overdrive off button doesn't light up and itwon't start in neutral. I tested the ground at the connector and it lights up atest light connected to the pos bat cable with no issues.
Back up lights won't work, but flicker as going from R to N, so I suspect that is due to the fact I couldn't get the marks to line up 100%, but i'm not worried about that now.
View 1 Replies
Daughters 94 f150 4.9L 204K miles e40d started leaking transmission fluid from the bell housing, so she parked it for 2 years...Now I have been nominated to fix it... Truck was running good when parked. Got it started (Just charged battery and started it up), and backed it up. Reverse is good and solid. When I tried to move it, it wouldn't move in drive. Starts to engage, then drops out. Pulled into first, and the truck moves, but have to have high rpm.
Replaced tc seal, filter and fluid, (12 quarts). No change... Ran it down the road, had to start off in first, good power up to about 35, shifted to second, it shifted...ran up to 45, then shifted into drive, it shifted, and maintained power. Had to slow so stopped and turned around, tried moving out in drive, and it just kept dropping out. Returned home as I left...read a lot of this forum, and learned some but not enough..
Pulled codes 327,116,536,538. No transmission codes.
View 10 Replies
The Truck: 94 F-150 XLT 5-speed 300-I6
The Problem: AC blowing hot air.
What I've done: Start the truck, look at the compressor, (looks like it's spinning to me), engage the AC, look again (yep the pully on the compressor is still spinning).
And that's pretty much where i stopped, cause i don't know what i'm looking for, should i be seeing it not spin if it where seized, and whats next on the list to check.
I assume that it's not seized at this point and it must be something else, like a control, keeping it from working.
View 1 Replies
I have a 94 f150 with the 351 and i was wondering how loud it would be with that huge stock muffler cut off and jsut the two cats still in place. I heard the cats will still quite it down a little bit cuz I don't want anything obnoxiously loud...
View 1 Replies
Ford F-150, 1994 : intermittent problem. going down highway, foot on the gas. At times, will press accelerator to go faster but nothing happens, like clog somewhere. Sometimes, with foot still on gas, i will hear a popping sound coming from under the truck, (under the engine?, or drivers seat). Usually 4-5 pops, sometimes none. But after each pop, car accelerates slightly, as if it is a slight clearing, until finally, as if some clog was opened up, the car plunges forward, so i then take my foot off the gas. Sounds like either problem with fuel getting to the engine or a problem with the exhaust.
View 4 Replies
I have a 1994 f 150 5.8l 4x4 with 215000. Cold starting is fine runs well. After running it will not start after shut down. Wait till motor cools back down will start up and run fine ....
View 2 Replies
I've got a 1991 Ford F150 Super Cab, 351 Windsor 5.8L V8, 2WD with 177000 miles on it. It rocks, I love this truck. But above 60 miles an hour I start to get a horrible vibration throughout the cab, mostly under the seat. It gets worse the faster I go to the point the whole cab vibrates. The challenge is that it only occurs when I'm on flat interstate, with just enough gas to maintain speed. If I accelerate, it goes away (or subsides quite a bit). If I let off the gas, it goes away completely. I had a transmission diagnosis from a local, reputable shop, and they said the tranny was fine. They said it was something in the engine, but I'm baffled that something in the engine could cause such a vibration all over the cab. Any thoughts on what this might be?
View 3 Replies
I have a 1994 F150 XLT 5.0 . The problem i am having is when I turn the ignition on I hear the fuel pump come on [both front and rear tanks] and it should stop when the system is pressurized but it does not,and the truck then fails to start. Intermittantly the pump does stop and the truck starts up.
There is fuel at the rail and there is spark,i have changed the filter ,fuel pressure regulater and the pump relay to no avail.
View 4 Replies
I just got a 1994 F150 with the 5.8L motor its a 4X4 with Auto trans. I have the dual tanks set up, midship and aft-axle and both tanks leak, more aft-axle then front. I was wondering how difficult is it to remove and install these tanks and what are some tricks to solve the problems I'll run into?
View 4 Replies
I have a need for a 12-volt signal to indicate the engine is in start or run mode. I would like to pull this from the engine compartment but I'm not sure what would be the best or easiest way to do this. The 12-volt signal is not used to power anything so it will draw very little current. I have a 94 F150.
View 8 Replies
I have become the proud owner of a 1991 Ford F-150 long wheel base with a camper shell. It has a 300ci straight 6 with an overdrive transmission. When I first started driving the truck over a year ago it had about 45000 miles on it. Obviously it had not been used much. I have since added about 15000 miles so now I am just over 60000. When I first started driving the truck occasionally it would jerk really hard when shifting. It didn't seem to matter which gear it was going into. The more I drove the worse the problem got to the point where it would drop completely out of gear while going down the highway.
Now another detail. The jerking was much worse when the outside temperature was above 50 degrees. During the winter the problem was all but none existent. I thought I was at the least looking at a transmission rebuild. Well about two months ago I decided to try something radical. When I drove in town I would turn the overdrive off and manually shift through the gears. Since my business is not far from my home and I seldom get over 50mph I would leave the overdrive off. It never would get over 2000 rpm's. After about two weeks of this I tried putting it back in drive while in town. Now there is no jerking or dropping out of gear.
View 6 Replies
I have a 2000 F150 5.4L with 157k miles on it. I think it has the 4r70w trans. The transmission has started holding 2nd gear too long before shifting into third. Throttle position doesn't matter, it does it even under light throttle. I do not have a check engine light. I have owned the truck since new and the trans fluid has been changed 3 or 4 times. The fluid looks pretty good now, not burnt or anything. The truck has been sitting in the garage a lot over the past 2 years, I drive it at least once a month and have put maybe 2000 miles on it this year. It shifts fine through the other gears, just 2-3 has an issue. Truck has the towing package.
View 6 Replies
1994 f150 with 4.9L I6; 180k mi.
Parked vehicle last night after using it uneventfully for work the day before. Upon leaving the house at 11:30 AM, I noticed that I'd picked up a new mechanical noise. Nothing major; actually wasn't sure I heard anything at all.
As I drove to the store, I noticed it was idling slightly unsteady...much less so than a missing cylinder. I resolved to check the high-tension connectors when I got home for security. I glanced down at the gauges to check and see if my oil pressure was good; I then noticed coolant temp reading "high normal."
When I got out, I noticed a small pool of coolant forming. I looked at where the puddle was forming...the radiator hose had come off! (Actually separate from the radiator connector, as one might do if draining fluid without using the petcock.) I popped the hood: no unusual smells. Nothing seemed abnormally hot. Placing a finger against the head was uncomfortable, but not painful. Spit expectorated upon the head did not sizzle.
I then called my wife, explaining the situation, and walked back home 2 miles. We then took the spare car, bought antifreeze, and added it about an hour post-shutdown. Where the car was parked seemed wetter than the light drizzle allowed; daubing a finger in it and tasting gave a slight sweet taste.
I tend to check my fluid every so often (not every day, though) and coolant was verified as "full" as recently as 100 miles ago. (I don't make a habit of crawling underneath, though, so I couldn't tell you if hose had been slowly backing off or not.)
As to cause: is it plausible that this could happen without foul play? There have been a few vandalism incidents in the neighborhood; it's also possible that I [peeved] off a neighbor recently. I'm not about to go any further than fixing, though, unless there's really no other plausible explanation.
As to the mechanical questions: How much damage was done? Did I "catch it" in time? What is suggested as far as repairs/maintenance? (I was planning on doing a compression test, and keeping a close eye on fluid levels over the next 1,000 miles or so.) Engine sounds completely normal.
View 19 Replies
My 1994 Aerostar, with 100,000 miles on it, started lurching at highway speeds. Weeks before this, the airbag light began blinking. The transmission man said it felt like it was shifting into overdrive, then out, then into overdrive, then out, etc.,etc. About this time, the cruise control quit being reliable. Dealership said codes didn't show a problem, "I must be mistaken". Then they said it sounded like a fuel filter.
View 6 Replies
My 94 ranger 4.0 v-6 makes clicking noises when hauling a load at highway speeds. How do i correct this?
View 4 Replies
1994 150 300 6. parked truck after lunch finished work and it wont start no fuel comes out of the valve. Can't get the pump to work even when jumping the 6 pin. heard the relay click still nothing. Checked the inertia switch it wasn't popped. Took the pump out jumped it straight from the battery pump works . I know there has to be something i am missing...
View 7 Replies
I'm looking at replacing the fuel lines in my 94 F150 and the big question is what to do with hooking up to the fuel lines coming out of the fuel pump hat and the fuel rails? Ford uses a specialized pressure fitting on it's custom fuel lines. I think there may be some third party fittings that would replace these, but I'm not sure. I could use a standard hose and cable clamps, but I just don't trust that kind of connection for a fuel line.
View 5 Replies
I have a 1994 Black Ford F150 and i was wondering if i could lift the truck 6 inches only using lift blocks (or any other cheap way to get my truck off the ground)....
View 2 Replies
I have a 1994 Pontiac Grand Am 2.3 L. I went 3 blocks yesterday to the highway and as i got ready to pull out onto the highway I lost power (like foot feed to the floor and going 20 mph). Drove it back home (3 blocks) and the engine is over heating within 3 blocks but temp gage isn't registering over heating (Incredibly hot under the car within 3 blocks). Engine was shaking badly and whatever it was blew a hole in my muffler? Put on all new spark plugs, oil change, oil filter... No more shaking in the motor but still no power when trying to go. Cut catalytic converter off and tried to drive out of the driveway, still no power on acceleration.
View 5 Replies
