Question about 1991 Ford F150

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97 F150 won't shift up until i let off gas

I've checked tranny fluid, it's fine. I'm not sure how to check if speed sensor is out. feels like its in a low gear. any other suggestions on what could be wrong?

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97 Ford f150 xlt rear wheel drive. transmission not shifting into 3 shifts from 1 to 2 fine when in overdrive shifts in to 3 feels like neutral. Trans need rebuilt or replaced?


Are there any lights lit on the dash ? check engine , overdrive etc..
could be just a shift solenoid ... Try draining trans fluid an replacing filter. Have to drop transmission pan .. what's the fluid look like ? a nice pink color ? does it smell burnt ? Is it full ?

Feb 25, 2015 | Ford Cars & Trucks

1 Answer

1992 F150 shifts real hard...transmission sometimes won't engage...checked all fuses...replaced shifting sensor on tranny... mechanic says he thinks its the instrument cluster ?


are the bolts connecting the transmission to the engine tight? Check the engine mounts as well. if the engine is sliding around on broken mounts and cause trouble with transmission...

What did they check on the tranny to say that it's fine? Did that come with removing it and doing a rebuild? Or changing the fluids? Good luck! Nice thing, lots of f150's around from that time period still in scrap locations. Probably can get parts fairly cheaply, rebuilt or aftermarket...

I don't know why he's saying the instrument cluster...

https://www.ford-trucks.com/how-tos/a/f150-f250-why-is-my-transmission-shifting-too-hard-356890

looks like some good info here

Nov 07, 2017 | Cars & Trucks

2 Answers

Why won't my 97 dodge caravan auto transmisson shift as speed increases, transmission fluid level is good?


Could be running in 'limp mode'. This is due to a faulty sensor in the transmission or wiring problem. It is a way the computer protects your transmission from damage due to a bad signal from the transmission sensors . Other recommendations from the Dodge forum are:
"stuck in limp mode there are a few things you can do to fix the car with out putting a new tranny if you really dont need one. First thing to do would be to change in/output sensors on tranny. $16 ea. Also check the tranny solenoid pack on tranny and check contact points clean out all oil if any in there. Clean really well. This is the problem I had. When oil gets inside of tranny solenoid pack it may ground out causing the service engine soon light to come on. I noticed on mine there was burnt oil and one contact point on the female plug was kind of burnt and black colored. What I did was clean with a needle so the male pin can make a clean contact. I also opened the bad pin with a needle to make it fatter so it will make a nice contact. I put all together and everything worked!! Dodge designed the part incorrectly causing many problems with these vans." Hope this helps.

Jul 29, 2014 | 1997 Dodge Caravan

1 Answer

Will bad speed sensor on 2000 saturn make tranny shift


maybe but, the PCM modules are notorious for going bad. before going into that check your MAP, MAF and CPS sensors. clean them off, make sure you have no air leaks in your intake system. if you are not low on tranny fluid, the shift solenoids could be a problem, but, most likely it is electrical in nature.

If you need further help, reach me via phone at https://www.6ya.com/expert/ray_6d6dc1dfa6f18dc1

Apr 05, 2014 | 2000 Saturn L-Series

2 Answers

1999 chevy lumina doesn't shift into overdrive, why?


If it won't go into overdrive a speed sensor within the transmission may not be sending the shift signal to the transmission. Check fluid levels to make sure that's not causing the problem. Also, check that the fluid is red color and clean.

Transmission probably needs to be serviced at a reputable shop if you want this problem fixed.

Jul 04, 2010 | 1999 Chevrolet Lumina

1 Answer

Slower engine speed in 4wd mode, 1st or 2nd gear (auto trans)


mcdevito75 here, I would figure yes, if your shifting while in motion, definetly yes, when you shift your changeing gear ratios in the 4 wheel drive or the transmission, this will cause the engine to slow but also make the gas pedal moe responsive.If you feel or hear this slowing down of the engine while standing still (at a red light) it"s most likely the computer contolled sensor in the tranny. I woulkd still check with my local shop for their advice too.

Nov 25, 2009 | 2004 Ford F150

2 Answers

Speedometer stopped,trany won`t shfit. whats wrong?


Check your speed sensor. located on the tranny. AT tranny wont shift if you have a bad speed sensor.

Jul 10, 2009 | 1995 Dodge Caravan

1 Answer

High idol all the time& tranny problems


Check for vacuum leaks on the high idol. You have a speed sensor or wiring issue with the tranny. Will need to be checked somewhere with a computer to know for sure on the tranny.

Jun 08, 2009 | 1994 Chrysler Concorde

1 Answer

Wont shift


check to make sure you did not knock off any vacuum lines and also make sure the transmission fluid is not low and if it smells cooked replace the fluid and the filter because the screen in the filter could be plugged and it is not getting fluid to the torque converter but check the fluid first

Nov 30, 2008 | 1987 Ford F 250

1 Answer

Tranny not shifting correct


The throtle posistion sensor. Sent to the trans. signal.
To shifting correctly, at especific. wide trhottle or open. engine rpm.and speed.

Jul 03, 2008 | 1991 Honda Accord

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