My wifes 98 Intrepid just started acting crazy, it shifts from first to
second almost instantly but won't go higher. The speedometer stays at 0,
it dies at stops, and the check engine light stays on. Can anyone tell
me what's up?
Thanks in advance
Tim
Bill Putney - 10 Jun 2005 01:59 GMT
> My wifes 98 Intrepid just started acting crazy, it shifts from first to
> second almost instantly but won't go higher. The speedometer stays at 0,
> it dies at stops, and the check engine light stays on. Can anyone tell
> me what's up?
> Thanks in advance
> Tim
You need to replace the output speed sensor on the tranny. It's in
what's called "limp" or "limp home" mode be because the sensor is not
working - doesn't allow tranny to shift out of 2nd gear (just like the
'Friends' TV show song). Cost of part is $20-40 depending on dealer.
Takes about 15 to 20 minutes to replace for a first-time DIY'er, or pay
a dealer $70-$100.
Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
adddress with the letter 'x')
Joe Pfeiffer - 10 Jun 2005 02:11 GMT
> My wifes 98 Intrepid just started acting crazy, it shifts from first
> to second almost instantly but won't go higher. The speedometer stays
> at 0, it dies at stops, and the check engine light stays on. Can
> anyone tell me what's up?
So, since the check engine light is on, what codes are stored in the
computer?

Signature
Joseph J. Pfeiffer, Jr., Ph.D. Phone -- (505) 646-1605
Department of Computer Science FAX -- (505) 646-1002
New Mexico State University http://www.cs.nmsu.edu/~pfeiffer
skype: jjpfeifferjr
Daniel J. Stern - 10 Jun 2005 02:13 GMT
> My wifes 98 Intrepid just started acting crazy, it shifts from first to
> second almost instantly but won't go higher. The speedometer stays at 0,
> it dies at stops, and the check engine light stays on. Can anyone tell
> me what's up?
Your transmission output speed sensor is probably toast. Easy fix.
Tim - 10 Jun 2005 22:12 GMT
> My wifes 98 Intrepid just started acting crazy, it shifts from first to
> second almost instantly but won't go higher. The speedometer stays at 0,
> it dies at stops, and the check engine light stays on. Can anyone tell
> me what's up?
> Thanks in advance
The only code I get is P1864 I have had the battery out so that makes
sence. My manual (Chilton) dosn't mention an output speed control
sensor, can you tell me where to look?
Thanks a million
Tim
maxpower - 10 Jun 2005 22:16 GMT
> > My wifes 98 Intrepid just started acting crazy, it shifts from first to
> > second almost instantly but won't go higher. The speedometer stays at 0,
[quoted text clipped - 7 lines]
> Thanks a million
> Tim
The output speed sensor can be serviced without having to remove the
transaxle from the vehicle.
CAUTION: When disconnecting speed sensor connector, be sure that the weather
seal does not fall off or remain in old sensor.
The output speed sensor is located on the left side of the transaxle case.
The sensor threads into the transaxle case. Tighten output speed sensor to
20-34 N·m (180-300 in. lbs.)
tim bur - 11 Jun 2005 01:30 GMT
it has the tan plastic base there are 2 and the one you want is rearward
> > > My wifes 98 Intrepid just started acting crazy, it shifts from first to
> > > second almost instantly but won't go higher. The speedometer stays at 0,
[quoted text clipped - 17 lines]
> The sensor threads into the transaxle case. Tighten output speed sensor to
> 20-34 N·m (180-300 in. lbs.)
Bill Putney - 11 Jun 2005 03:23 GMT
> ...The output speed sensor is located on the left side of the transaxle case...
So's the input speed sensor. The output sensor is the one towards the rear.
Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
adddress with the letter 'x')
tim bur - 11 Jun 2005 01:28 GMT
replace the output speed sensor on the trans it's in limp in mode
> My wifes 98 Intrepid just started acting crazy, it shifts from first to
> second almost instantly but won't go higher. The speedometer stays at 0,
> it dies at stops, and the check engine light stays on. Can anyone tell
> me what's up?
> Thanks in advance
> Tim
Tim - 11 Jun 2005 19:29 GMT
> My wifes 98 Intrepid just started acting crazy, it shifts from first to
> second almost instantly but won't go higher. The speedometer stays at 0,
> it dies at stops, and the check engine light stays on. Can anyone tell
> me what's up?
> Thanks in advance
> Tim
Thanks guys, it was an easy fix, cheep too $19 for the sensor and $5 for
a deepwell socket to take it off. The check engine light is still on though.
Thanks again
Tim
Bob Shuman - 11 Jun 2005 19:39 GMT
No speedometer is almost always caused by a bad output speed sensor. Glad
to hear this fixed your trans problem. Did you remove the battery cable to
reset the computer? What is/are the engine diagnostic codes?
Bob
> > My wifes 98 Intrepid just started acting crazy, it shifts from first to
> > second almost instantly but won't go higher. The speedometer stays at 0,
[quoted text clipped - 6 lines]
> Thanks again
> Tim
Tim - 11 Jun 2005 21:57 GMT
> No speedometer is almost always caused by a bad output speed sensor. Glad
> to hear this fixed your trans problem. Did you remove the battery cable to
[quoted text clipped - 16 lines]
>>Thanks again
>>Tim
Codes were 0700 and 1684 (I had the starter out a while back) I'll go
out right now and reset the engine light. Thanks for your help.
Tim