Ok, sometimes you wont even feel the car shift into gear at all when driving. Other times you can feel it, like the RPM's are going too high before it shifts. If I like try to pick up quick from a dead stop to get onto a busy road you can def feel it. When I keep the gas pedal in one spot and not too much, flawless shifting. Another thing, at times when Im braking and the car goes into 1st its somewhat of a hard down shift. Is there a bad senor or something??? I had my tranny flushed about 3 weeks ago, didnt make a difference. The car only has 64.8k org miles. Thanks
'89 DeVille Late Shifting???
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Check the detent cable adjustment.
Hmm. I don't have access to my own pictures right now...so I stole this one in a search. Ignore the red circle:
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Do you see the two cables on the throttle? One's for the gas pedal, the other is for the cruise control. Now, look VERY closely underneath those two cables, you will see a third. That's the detent cable. In laymans terms, it's job is to tell the transmission how much throttle you are giving the engine, thus telling the transmission when to shift. Go out to your car and inspect it. It should be connected to the throttle hammer and there should be no slack in that cable at any time. If there is, it needs adjustment.
Let us know what you find.
Do you see the two cables on the throttle? One's for the gas pedal, the other is for the cruise control. Now, look VERY closely underneath those two cables, you will see a third. That's the detent cable. In laymans terms, it's job is to tell the transmission how much throttle you are giving the engine, thus telling the transmission when to shift. Go out to your car and inspect it. It should be connected to the throttle hammer and there should be no slack in that cable at any time. If there is, it needs adjustment.
Let us know what you find.
OK. How's the fluid?
Warm the transmission: take the car on a 10 minute drive down the freeway, turn around and drive 10 minutes back. Park on a level surface and pull the trans disptick, noting the level, color, and smell of the fluid.
Warm the transmission: take the car on a 10 minute drive down the freeway, turn around and drive 10 minutes back. Park on a level surface and pull the trans disptick, noting the level, color, and smell of the fluid.
98 Deville, '15 Ford Fusion Hybrid Titanium, '12 Ford Escape
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3,296 Posts
Have you checked for codes yet? I know the 89 is OBDI it may have codes for transmission related errors.
BTW, my first car was an 89 Deville, I'd love to see pics of yours, it is and was the best car ever. :thumbsup:
BTW, my first car was an 89 Deville, I'd love to see pics of yours, it is and was the best car ever. :thumbsup:
85 Coupe Deville 4.1 V8 & 4.3 V6 Deisel & 1970 Eldorado
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776 Posts
To clear the codes enter the diagnostic mode by pressing off and warmer at the same time. After all codes are displayed, The codes can be cleared as follows.
ECM By pressing and HOLDING OFF and HI simultaneously until E.0.0 appears.
BCM By pressing and HOLDING OFF and LO simultaneously until F.0.0 appears.
After E.0.0 and F.0.0 is displayed, 7.0 will appear. With 7.0 displayed turn the ignition off for at least 10 seconds before re-entering the diagnostic mode.
ECM By pressing and HOLDING OFF and HI simultaneously until E.0.0 appears.
BCM By pressing and HOLDING OFF and LO simultaneously until F.0.0 appears.
After E.0.0 and F.0.0 is displayed, 7.0 will appear. With 7.0 displayed turn the ignition off for at least 10 seconds before re-entering the diagnostic mode.
before you flushed the transmission was that the original fluid if so it is possible that fluid was holding parts of the transmission together or if it was a true flush they may have no got all the gunk out and it got into different places and is causing problems
it is only recommended to flush a tranny only if it is giving you problems
it is only recommended to flush a tranny only if it is giving you problems
I was very up front about telling them to be easy, they said the machine wouldnt flush harder than what my trans reg pushes fluid around at. I had the flush done to fix this problem, but it didnt. Does shift smoother than before tho. It has no problem shifting into all gears, just sometimes its late.
how many miles are on the car? also it could be possible the transmission is getting ready to kick the bucket
98 Deville, '15 Ford Fusion Hybrid Titanium, '12 Ford Escape
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3,296 Posts
Tranny repairs seem to be around $3,000 at least in my area or less. But with only 64000 I don't think that is the issue, but I'm not a genius on this stuff. My 89 Deville went to 230,000 engine and tranny original. But this is my only point of reference.
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