Having problems with your 1990 Ford F150 ?

My 1990 f150 shifts fine when accelerating but when going into a incline it shakes severely and is hard to get to downshift

\015 Could it be the transmission selinoid or vaccume line\015 Posted / edited by AnonymousUser on : 15-01-2018

Answers :

Repair Help & Product Troubleshooting for 1990 Ford F150

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

My 1990 f150 shifts fine when accelerating but when going into a incline it shakes severely and is hard to get to downshift


... 1990 Ford F150

1991 CAMRY with 235k miles....will not go up a hill hardly at all. Like a big truck pulling a trailer going up a hill, then go down the other side and the car shifts perfectly and no problems...the OD off light on the dash blinks on and off. Just will not hardly go until the engine gets wound up and downshifts..at times I press the gas pedal to the floor and nothing happens until I hold it down for several seconds until it finally starts going....Please tell me it might be a thermostat or som


I would say it is to do with the ignition system. ... 1991 Toyota Camry

Where is the iac valve on a 2003 f150 5.4l triton v8? my truck will idle steady but when shifted into drive or 1 the rpm drops and stalls engine, also when coming to a stop it will act like its stalling just before coming to a stop then the rpm will jump back up to normal, this will happen around 80% of the time i drive. Also when I get to 45mph the truck will shake fairly hard until i get to about 65mph and then its fine. Had some mechanic say it was my transmission going out from the torque co


The iac is located on the throttle body. It should be on top to the rear area center. Go to kragen.com. Put in your info and a picture should show you what it looks like. ... 2004 Ford F150

Where is the iac valve on a 2003 f150 5.4l triton v8? my truck will idle steady but when shifted into drive or 1 the rpm drops and stalls engine also when coming to a stop it will act like its stalling just before coming to a stop then the rpm will jump back up to normal this will happen around 80% of the time i drive. Also when I get to 45mph the truck will shake fairly hard until i get to about 65mph and then its fine. Had some mechanic say it was my transmission going out from the torque conv


... Cars & Trucks

Will the shift solenoid cause my 1990 f150 to shake and not hardly downshift


... 1990 Ford F150

Automatic transmission on 2000 Savana 1/2 ton is hanging up when stopping and not going into 1st gear. I can easily get it into 1st by shifting into neutral and putting it back in drive. This gets me back to 1st. If I don't manually take it out of gear it bangs hard when taking off from a stop, as if it is downshifting into 1st at that time. Other than that, the transmission shifts well through all other gears.


Have the trans filter& gasket changed. Valve body maby sticking fresh fluid and filter might help. ... 2000 GMC Savana

When you take off in my car it don't wanna get up to speed and it's like you lose power going around 30 and trying to get up to 55 and it shakes hard and when it down shifts it shakes really bad and makes for a rough ride


This sounds to me as though you have a mixed up computer chip in the onboard computer controling the shifting. First though, check the RPM sensor on the tranmission. If it is sending a wrong signal, that would cause the shifting problem. If you have ... 1995 Chevrolet Lumina

2002 Isuzu Axiom 2wd, Check Trans Light comes on and seems to go into a back up mode full pressure with very hard shifts. This occurs in Full Throttle Situations or getting on a on ramp to a highway or downshifting with full throttle. No Codes will log into sys. but if you clear the Codes with a Reader it will go back to normal operation?? I have checked fluid and visually inspected harness outside of Trans. also ohmed out the Sensors and Solenoids fromt the ECU Harness Connector??


... 2002 Isuzu Axiom

We are having trouble with our jeep shifting..we have bled the clutch several times and it will work better for awhile but then will start acting up again..we just had the transmission forks replaced about a year ago..if you downshift before coming to a complete stop it's fine but when you are backing up it has some trouble going in reverse sometimes and then back in first sometimes we have to turn the ignition off to get it in gear and then go.. it is a 1988 jeep wrangler with the puegot tranny


You haver a small leak in the seal in the slave cylinder, I believe they sell and aftermarket kit to put ther slave cylinder on the outside, a better system. I believe they changed the design in the early 90's ... 1988 Jeep Wrangler

1998 isuzu rodeo has intermittent hard shift from 2nd to 3rd gear and extreme hard downshift from 3rd to 2nd gear. When this happens it may hard shift only a couple of times OR it may do the same thing for a day or two OR most recently it may continue for several days. Sometimes the hard shift occurs immediately after the car is started but sometimes it may be shifting smoothly with the engine & transmission "warmed up" and all of a sudden the "hard shift" begins. The downshift is a loud grind


Hi. If your driving an automatic transmission please try to change the transmission fluid and filter, a smooth run will be noticeable after performing this. If you're driving on a manual transmission then there may be a problem on the clutch lining, ... Isuzu Rodeo

I get a hard shift out of first to second gear and it also stalls when going into overdrive... when the tranny downshifts from O.D. it slams into the lower gear


It sounds like you have a modulator problem. With the stalling it could be a vacuum leak, the vacuum line to the modulator may have come loose. This will cause the hard shifting and cause your engine to stall at low RPMs, such as in overdrive. Try to ... 1999 Jeep Grand Cherokee

1992 F150 4X4 pickup E4OD transmission shift hard and downshift wind getting off the gas


... Cars & Trucks

Stalling periodically after stopping, hard to get cranked back up, spuuters initially after restarting, seams to coinside with tansmission not shifting into overdrive. all of this happens at the same time. then runs fine and normal for several days and starts again. have replaced the fuel pump, filter,and gauge in tank. also have replaced distributor plate under the cap. mechanics tend to believe that the computer may be going out.


Ryan before you start spending alot of money on computers,sensors,and other parts I would first look very carefully at all of the ground connections on the engine there are several scattered around your engine I assume you have 4.0l look around the t ... 1997 Jeep Cherokee

I have a 1991 f150, 302 engine, e40D auto trans that is slow to upshift. It's worse in warm weather and when it does upshift, it shifts very hard. I have had it checked at a trans. repair shop. They pulled trans, repl. torq converter,checked trans., changed filter and oil. No change. It has done this for several years and is just starting to get worse.


Just a hunch have the tps values checked ( throttle position sensor ) ... 1991 Ford F150

Have a chevy impala 2000 with 3800 in it. the tranny has been shifting hard off the stop. If you gradually depress gas pedal then there is no problem with shifting in any gears, but when yor at a stop, and you need to punch it and go suddenly, NO WAY you could without get a mild slugging shift and then BOOM! it will go into 2nd hard after that no problems. Fluid is about 10,000 miles old Synthetic and looks, smells and appears new. I have purchased the shifting solenoid A & B which is the 1 & 2


I have a 2003 Impala LS how do I turn off my trac system ... 2003 Chevrolet Impala

My 97 expedition starts and runs good I'm driving down the road, Then the overdrive light starts blinking on the end of the shifter, So when I come to a stop then start to go again it shifts real hard. Well then I get through the gears I turn the key off then on the light quits blinking and shifts smooth. Then after about 15 to 20 minutes later after I've driven awhile stopping and going the light starts blinking again and then shifts hard again, Until I shut off then on again. What could it be?


... 1997 Ford Expedition

I have a 1997 Ford F-150 Lariat, and when pulling a trailer it makes a chattering noise when the gas pedal is pressed down to pick up speed. When going up a hill it will not go passed 40 mph and starts to shift hard when pressing the gas pedal. In normal driving without a load and getting on a highway and picking up speed the first two shifts are hard and then smoothes out. The truck has around 130K of miles on it, mainly highway miles. What could the problem be?


If tranny is manual shift you may have a bearing and or bad gear. Try changing tranny fluid. Check manual for correct fluid may use tranny fluid rather than gear oil. I recommend using Royal Purple fluid or gear oil. This very expensive but will slic ... Ford F-150

1990 Chevy Suburban 4x4 shifts late and hard, particularly at highway speeds. The husband thought it was acting as if it wasn't getting fluid through the filter (starving for fluid) and he changed the trany fluid and filter. However, it is still shifting late and hard, though, and we need to try to get it fixed before winter hits us for real (we live in Iowa). Any ideas what's going on with the transmission and how to fix? What could be


There is a vacuum line that runs down to the transmission to the modulator. Either the vacuum line has came off on one end or the other. Or the modulator on the transmission is bad. It has to be one of the two. ... 1990 Chevrolet Suburban

I have a 2000 saturn sl1. 1.9. My transmission when shifting into reverse it shifts hard after about 2 seconds of putting it in reverse gear. Then going forward it more of a stall shifts from 1-2 and 2-3 and sometimes takes a while to shift when im going over 55 to final gear and also when i slow down it shifts down when im already at a stop. it also makes my car have a high idle when in gear i can get up to speed without ever hitting the gas pedal. This has just started within a couple days of


How many miles on it? how does the clutch pedal feel? how old is the clutch? ... Cars & Trucks

My 1995 nissan quest overdrive light comes on when i start it and it wont go in drive but will 2nd gear, sometime on can turn the van off and restart and it will go in drive and shift ok but it shifts hard, had a mechanic check it out but shifted fine for him and he says transmission fluid is fine and not burning, shifted good for me twice yesterday not shifting into drive today just 2nd gear, overdrive flashes several times when i start it.


... 1995 Nissan Quest

1996 Honda Accord EX 4 cylinder will not downshift? It feels like it goes off in high gear and will not lower or start off in first. It is stuck in gear. It will not go up a small incline or hill. It will go in reverse. In order for me to get it to go I have to turn the car off and back on to get it going again if it slows down to a stop. What could be wrong with it. Could it be the Transmission Computer or what do you think it could be?


Those are known for having bad torque converters which eventually ruin the transmission. sounds like the transmission is already bad, Sometimes if you catch it early enough, you can just replace the torque converter and it would be fine. ... Honda Accord

My 1996 oldsmobile 88 has been running terrible for the last month and gets worse every week. It won't go when I have the gas pedal floored sometimes, and then it will slowly get up to speed but takes a long time just to get to 30 and to shift. And then all of a sudden it will get the gas and go fine, but it always sounds very rough and the whole car shakes. I don't know whats wrong with it and what I need to do to fix it.


Hello there good man or woman Lets start off like this there is 50 different things that can cause these issues but will start with the simple things in a list. So here it goes 1. bad spark plugs (ca ... 1996 Oldsmobile 88

Got a 99 jeep grand cherokee larado. when you first get in and take off the automatic does great until you go thru a few shift cycles then it shifts hard into 3rd. you can stop and turn off the jeep and let it sit a few moments then start again, it does fine for a few cycles then starts shifting hard into 3rd again. any ideas?


Dirty transmission filter. Most "service" places only pump out the fluid through the dipstick tube and tell you that the filter will be OK. That way they don't get an ATF bath when they pull the pan. I'm guessing that the crud in your tra ... 1999 Jeep Grand Cherokee

Was getting around 18mpg, recently I pulled out in traffic and had to gun-it. A short time later I was going no-where. Had to pull over several times before realizing I could go, but only at a low "55-60" mph. Made it home, disconnected the battery and reset obd. Next few days, could go almost like normal, but still lacking power on the interstate with easy uphill grade. Transmission seams to shift through 1,2,3, to D , O'kay, but not able to hold 70-75 speed. Now getting around 14mpg. Repla


A MAF can also be set if you have a partial plugged catalytic, or a stetch chain ,a stretch chain I would doubt,But a pulgged catalytic yes,As for the thermostat yes it can wake the 02 sensor when a vehicle is not at operating temperature your system ... 2002 Chevrolet Astro

My ford dealership says my torque converter is bad. What are the symptoms of this? My car is making a metal on metal noise from the rear end that sounds like tink-tink-tink. This noise only comes about once a week and is only there for about 5-10 minutes at a time. The noise can be heard at any speed, but gets faster as i go faster, and slower as i go slower. My car has stalled twice in the 4 years I have owned it. Occasionally, it has a hard time shifting from park to drive, but shifts fine und


Sounds like the insides of torque converter broke welds loose you will need a new one the description you gave are exactly the symptoms ... 2003 Mercury Mountaineer
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 4.6629 seconds