I had problems before with the clip on the throttle but it was fixed. Now it seems that when I put it in gear it gets stuck and won't go, sometimes it even stays in 1st through 3rd gear then kicks in. I was wondering if anybody could help me on what it might be.
I have a 1987 Mercury Cougar and mine does something like that. One of my friends told me it could be the modulator valve on the transmission... it's the thing that sets on the side of most all Automatic Transmissions to help govern the shift timing.
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The cable going to the transmission from the throttle body needs adjusted. There is a locking clip like thing on the throttle body end of the cable. Pull that clip out and it will let the cable move in and out of the bracket. Then hold the throttle all the way open and push the clip back in, that will adjust the cable for your van. I hope this is helpful for you. Please rate my answer so I get points awarded for it.
If you look down at the trans where the cables attach to the shift tower, the cable sheaths also attach to the transmission with black metal sheet metal clips. Sometimes the clips come off and the cables are loose and it is very hard to get into and out of gear. If that is the case then you need to get new clips. If that is not the case then more than likely, you need to replace the shift cables.
Remove the clips that attach the cables to the shift tower and you should be able to run the transmiaaion through the 5 forward gears and reverse...if that is OK the it's the cables...if not then it is internal to the trans.
have your transmission oil replace, drain the old oil and put some gear cleanser about a liter or two then start the engine for about 5 sec., then drain again for the dirt to come out before putting your new oil...
If your transmission doesn’t shift out of first gear or shifts hard at too high a R.P.M. this doesn’t always mean you have a problem. This could be a stuck throttle valve caused by a small piece of trash. This sometimes happens after a rebuild. Sometimes the throttle valve can be unstuck without removing the valve body. Get up to about 20 to 30 M.P.H. and hit the gas pedal on and off hard with your foot. This might do the job. If that doesn’t work remove the throttle valve cable end from the throttle, with the motor at idle in park, pull the cable in and out very fast, this might work, if not the valve body must be removed by a transmission shop to be unstuck.
Also check the governor for a stuck valve, weights or governor drive gear damage.
Shift suddenly become very hard. When going from park to either
reverse or drive it slams into gear. 1-2 and 2-3 shifts are also harsh.
All gears seems to work. Problem may be intermittent: Check TPS for smooth and linear electrical response over the entire range of motion. If not, replace.
Extremely harsh shifts from P or N, normal shifts at WOT: EPC
(Electronic Pressure Control) solenoid failed. Easy fix in pan. Fix as
soon as possible or hard parts will eventually break.
No 1st or 4th available; trans shifts 2nd to 3rd by itself in D or OD and locks the converter : ShiftA solenoid failed. Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.
Car goes into gear but feels very sluggish like the brakes are dragging,
but it will roll easily (starts out in 4th gear), you manually shift to
2 to get it moving, once it's moving you put it back in OD and the car
shifts 3rd to 4th on its own and locks the converter at the appropriate
time: ShiftB solenoid failed: Easy fix in the pan. Or a wiring problem
from PCM to trans.. or PCM.
sounds like 2 different problems..about the high idle,for example my 94 Bronco had a problem with the throttle sticking,it wasnt closing all the way,so i took apart the linkage at the throttle body and found that the shaft that the linkage pivets on was dirty so the shaft would not move easily on it.If i could put a picture on this i would,but dont know how..the part of the linkage im trying to point out i believe is where the cable connects from the gas pedal,on top of the shaft is a C clip,pull off that clip and pull the shaft off by turning back and forth while lifting at the same time.clean the shaft with sand paper or emery cloth and grease and reassemble...now for the shifting hard and check engine light,most likely its the vehicle speed sensor bad,thats if when you put it in gear and it hits hard and when it shifts into the next gear it hits hard.That sensor is about $35.00...you shouldnt have to worry about resetting the computer,an OBD11 computer system resets itself after so many revolutions of the engine,in a Ford