Toyota Camry: Transmission problem

On my 2002 Camry, the car does not shift into overdrive until the car warms
up. In your case, you stated this happens after 30 min so that should give
ample time for the engine to be hot. I would suggest when that happens
again to go straight to the dealer and have then use a scanner to check what
codes come in. I would suspect the onboard computer would also store
previous check engine codes as well.

"CW" <net> wrote in message
news:google.com... 

net (CW) wrote in message news:<google.com>... 
Your electronically controlled transmission has one or more speed
sensors.
Chances are the problem is there - the car's computer is receiving
erratic readings, or none at all.
First thing to check would be the wires that connect on the outside of
the transaxle.
If you can find them, try removing the wire, cleaning and
re-connecting -- that could solve your problem right there.

Your case sounds like an online test (#6) available at
http://www.autoshop101.com/tests/intest14.html :

Q6. The engine stalls intermittently. After several days, the technician
captured a recording on the scan tool that showed scan tool data when the
engine started to stall, but then caught itself and kept running. Here is
what he found. What do you think is wrong?

Correct. Notice how in frame -5 the RPM stopped totally, but the question
said the engine started to stall, but caught itself. The RPM in frame -5
went to zero because the computer thought the engine stopped because the RPM
signal went dead for a moment, even though the engine was still spinning.
Remember, without the RPM sensor, the computer wont run the injectors or
anything else.




"CW" <net> wrote in message
news:google.com... 

Using a different email address, but am original poster.
Started the car this am ,,,,everything was fine. Ran it for 20 minutes, ran
fine. Check engine light off. This makes me think it is more of an
electronic than mechanical problem, as mechanical would seem to happen all
the time. Although I an not a mechanic.

Here are some other things that might be of help. Replaced brakes 5k miles
ago. Noticed that wheel cover on right passenger side is black from brake
dust.
Also, the day before this happened, I turned headlights on and walked into
work, coming out to a dead battery. Jumped battery, car was fine. (I know
they go out automatically, but I turned them on without the car being
started, and doors open) I was in a hurry, and thought I was turning them
off.

Hopefully someone somewhere cam makes some sense of this....lol....

Thanks,

CW


"CW" <net> wrote in message
news:google.com... 

I think "IceMan" found your issue.
--

-Philip

"Whatever is a choice will become chosen"


In news:4009a19b$0$36178$fuse.net,
CW <com> being of bellicose mind posted: 

"Philip®" <net.invalid> wrote in message
news:X3nOb.13675$news.pas.earthlink.net... 
<snipped>

Will the computer store error codes?...the check engine light went off.
The rpms always seemed to stay accurate, but the speedometer was all
over...from 0-60...even when I was going 60 mph

CW

In news:400a087e$0$12809$fuse.net,
CW <com> being of bellicose mind posted: 

Any persistant sensor or actuator or value-out-of-range will will
trip a code and store it. This does not mean that a specific pin
point self diagnosis will result ... only a specific circuit
deficiency. Also, for the most part when a failure code is set, the
failure while logged may be reset by the ECM if the failure "cures
itself" for some period of time. Notice how carefully I couched
that? LOL Once you get it to screw up, prolong that condition as
long as you can to assure a failure code record and then get the ECM
read ASAP.
--

-Philip

"Whatever is a choice will become chosen"

Philip® wrote:
 


LOL, yeah, usually its "2 trip detection", if it sees a problem for 2
trips, will set the code. If it doesnt see it in 2 drive cycles after it
turned on the light, it wil turn off the light, BUT the code will
remain. Now somethign like 40 drive cycles with no trouble, the code
will clear completely. Toyotas enhanced software, we can see past codes.

 


--





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