1999 Ford Taurus SHIFTING

MSWOPE2199

MEMBER
1999 FORD TAURUS
6 CYL
FWD
AUTOMATIC
15,000 MILES

I HAVE HAD ISSUES WITH THE TRANSMIISION DOUBLE SHIFTING FROM 1ST TO 2ND GEAR ONLY AFTER THE CAR WARMS UP. NO OTHER ISSES WITH VEHICLE SHIFTING JUST FROM 1ST TO 2 ND GEAR. I HAVE HAD THE CAR AT AMOCO TRANSMIISIONS AND THEY HAVE REBUILT THE TRANNY AND STILL CONTINUES TO HAVE THE SAME PROMLEM. OVER THE COURSE OF THE LAST 15 MONTHS THE CAR HAS BEEN IN AND OUT OF THE SAME SHOP AND THEY HAVE REPLACED THE TRANNY THREE TIMES. STILL CONTINUES TO HAVE THE SAME PROBLEM. THE NEXT TIME THEY REPLACED THE COMPUTER TO THE VEHICLE. NOW THE SHIFTING HAS GOTTON BETTER BUT STILL DOES IT FROM TIME TO TIME AND DONT KNOW WHAT TO DO. THE WARRANTY ON THE TRANNY HAS JUST EXPIRED AND THE TRAMSMISSION DOESNT EVEN HAVE 5,000 MILES ON IT. I HAVE TRIED EVERYTHING INCLUDING CHANGING THE ALTERNATOR, COIL PACKS, WIRES, OXOGEN SENSORS(4) AND STILL CONTINUE TO HAVE THIS PROBLEM. PLEASE HELP.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Have they timed the shifts? In other words, how long in miliseconds does the shift actually take? To me, it sounds like a pressure issue or there is too much play in the clutch pack. As a result, the pressure hits the pack, bumps it to shift, there is a brief delay because of the clearance in the clutch pack, then enough pressure is built to actually shift.

It is hard to explaine. Let me know if they scanned it while they drove it to check how long the shifts were. If they didn't tell you, is it possible to ask them?

Also, when they switched transmissions, was it a totally new trans or did they take the guts from yours and install it into another case? Was the valve body and shift solenoids replaced?

Sorry about all the questions, but I need to know to determine what is happening.

Joe

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Wednesday, October 27th, 2010 AT 9:20 PM

MSWOPE2199

MEMBER
2 POSTS

When they first started with the car they rebuilt the tranny twice. I guess they couldn't figure out where the pressure was going. They then purchased another brand new transmission with everything new including wiring and shift selonoids. This included the valve body as well. Like I was saying earlier, they have had the car appox 15 to 18 times and made adjustments, etc. I am concerned if they started adjusting other things besides the transmission areas. Does the adjustment of the cam sensor cause a simialiar issue with the double shifting? Also they did do a road test with a dianostics computer, thats how they new it was double shifting and thats when they replaced the computer(ecm). The only gear I am having issues is from 1st to 2nd gear only. Other then that the transmission works great with no other issues. This problem doesnt hapeen all the time just from time to time after it warms up. The biggest issue is my 17 year old daughter is driving the car and beleive me, the constant complaining is getting old. Lol

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Wednesday, October 27th, 2010 AT 10:10 PM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Honestly, the cam sensor could cause a problem with the engine, a miss. However, it wouldn't be limited to the 1-2 shift. There is a pressure issue here or the wiring to the ECM. Since it is only at times, I feel it is most likely related to a wiring issue. There could be a wire that is internally broken and losing contact or having a weak contact causing a double shift.

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Thursday, October 28th, 2010 AT 8:21 AM