1992 Ford Escort LX Transmission Problems

Tiny
ONEMANINBLACK
  • MEMBER
  • 1992 FORD ESCORT
I have a 1992 Ford Escort LX with a 1.9L FWD automatic transaxle with overdrive. It has 161K miles on it. Bought it from a friend knowing it had a bad head, went to a salvage yard and got a good head from them, got the motor sounding and running nice, but am still having some minor bugs to work out. First, the tach in the dash goes to 3k RPM no matter how revved up the motor is.I know the motor is not canstantly running that fast. I have replaced the Ignition control module, crankshaft positioning sensor, and the camshaft positioning sensor. Did not help at all. Second problem, which is the most baffeling one is this, the transaxle. It goes into gear nice, but shifts late. Usually will not shift out of 1st gear until between 30-40 Miles per hour, sometimes will shift through the other gears late also, will not kickdown when pressing the accelerator down, and will not go into overdrive. It will down shift when approaching a stop light. I have replaced the throttle positioning sensor, idle air control valve, and have also checked the adjustment on the kickdown cable. The cable moves as far as it is suppose to be able to, so I know the cable is not hung up. I have compared the adjustment specs to the Chilton I have on this car and it seems to be set right. I also replaced the powertrain controle unit and the module, making sure that the numbers match identically. I am baffled as to why it will not go into overdive, will not kickdown when flooring the throttle, and shifts later then when it sounds like it should. I am also wondering if this has anything to do with my tach acting up. Since the Engine Light comes on and stays on, I hooked up an engine code reader, performed both the key off and the Key On Engine running scans but am unable to get any codes from either computer, original or replacement. Please let me know what you think it could be.
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Monday, May 28th, 2007 AT 8:44 PM

9 Replies

Tiny
JACK42
  • MEMBER
Yes, they very well could be linked. Might have to have a pro scan it, if the light is on, there are codes to be had. We need to get them, will give us a place to start
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Tuesday, May 29th, 2007 AT 8:00 AM
Tiny
ONEMANINBLACK
  • MEMBER
The way it looks, if I hit the top of the dash, the tach will start to work correctly. I am curious though, is there possibly a chance that the kickdown connection on the transaxle might me hanging up and that is causing it not to downshift or go into overdrive.
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Tuesday, May 29th, 2007 AT 8:24 AM
Tiny
JACK42
  • MEMBER
Then it is either the tach or a bad connection in the instrument cluster. I would mess with the kickdown to see if it has an effect on the shifting
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Tuesday, May 29th, 2007 AT 9:50 AM
Tiny
ONEMANINBLACK
  • MEMBER
I dosconnected the kickdown and tried driving it, but still will not go into overdrive.
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Tuesday, May 29th, 2007 AT 10:16 AM
Tiny
JACK42
  • MEMBER
Try adjusting it the other way
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Tuesday, May 29th, 2007 AT 12:53 PM
Tiny
ONEMANINBLACK
  • MEMBER
I completely disconnected the kickdown cable from the throttle body and still would not go into overdrive
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Tuesday, May 29th, 2007 AT 2:02 PM
Tiny
JACK42
  • MEMBER
I understand that, try tightening it more than it was
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Tuesday, May 29th, 2007 AT 2:05 PM
Tiny
ONEMANINBLACK
  • MEMBER
How tight do I adjust it, had the inner cable tight with no freeplay in it
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Tuesday, May 29th, 2007 AT 2:10 PM
Tiny
ONEMANINBLACK
  • MEMBER
I just got off the phone with the local ford Repair shop and they said my inability to retrieve any codes is possibly because I have a blown fuse that will not allow the scanner to access the computer. I checked the fuses and they were all good, but they were unable to answer one question that I have, which is this, Is there suppose to be any power at either of the 2 terminals on the Data Link Connecter that I am suppose the be able to cross in order for the check Engine light to flash the trouble codes. I have tested the 2 terminals that I am suppose to jump for the self engine code retrieval and both terminals have nothing
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Thursday, May 31st, 2007 AT 1:14 PM

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