Auto tranny stopped downshifting
08-30-2010, 04:03 PM
#21
Registered User
iTrader: (1)
Join Date: Nov 2006
Location: Clarkston,WA
Posts: 363
Likes: 0
Received 0 Likes
on
0 Posts
A340's
what is VSS and TCM ? TPS is throttle position sensor correct ? Thanks .
Had 3 shops tell me a minimum of 3 grand for a rebuild and that was best case senerio and nothing major was wrong with it .
the rear diff has a metal on metal sound when you turn the yoke , noticed it when doing u-joints last week , pinion seemed kinda loose to me .
Had 3 shops tell me a minimum of 3 grand for a rebuild and that was best case senerio and nothing major was wrong with it .
the rear diff has a metal on metal sound when you turn the yoke , noticed it when doing u-joints last week , pinion seemed kinda loose to me .
TCM- trans. control module, basically the computer that shifts the transmission. Not sure if it's a seperate unit on that new of a Toy but the old ones were different than the ECM(engine control module).
I'm saying it's sounds electrical related. If was mechanical it would probably be slipping and not even wanting to shift manually. IMHO
08-30-2010, 10:35 PM
#26
Registered User
I don't think the A340F tranny has a TCM, I think it's just controlled with the ECM, but I'm no tranny expert.
FSMs:
http://www.ncttora.com/fsm/index.html
FSMs:
http://www.ncttora.com/fsm/index.html
08-31-2010, 03:04 AM
#27
Registered User
Thread Starter
Join Date: May 2010
Location: Mid. Tn
Posts: 61
Likes: 0
Received 0 Likes
on
0 Posts
Pretty sure it is not electrical seeing how i have no cel coming on . I think it is just a hunk of junk all together . Nothing but bad luck and have to replace or fix something on it EVERY week ..
08-31-2010, 05:12 AM
#28
Registered User
iTrader: (1)
Join Date: Aug 2006
Location: Ft Collins, CO
Posts: 3,477
Likes: 0
Received 0 Likes
on
0 Posts
Its electrical. Trust me.
Also, a CEL doesn't have to come on. It can be simply stored. Have you pulled codes with a scanner? I will put money on the solenoids or a TPS being out of adjustment. With the mileage you have on the car, I would do the solenoids as well. There is a link in the below write-up that I did that has a cheap source for solenoids for the tranny. IIRC they are around $130 for all three solenoids.
Read through this:
http://www.toyotaholics.com/support/...sp?TOPIC_ID=19
Also, a CEL doesn't have to come on. It can be simply stored. Have you pulled codes with a scanner? I will put money on the solenoids or a TPS being out of adjustment. With the mileage you have on the car, I would do the solenoids as well. There is a link in the below write-up that I did that has a cheap source for solenoids for the tranny. IIRC they are around $130 for all three solenoids.
Read through this:
http://www.toyotaholics.com/support/...sp?TOPIC_ID=19
Last edited by ScottyC; 08-31-2010 at 05:15 AM.
08-31-2010, 02:08 PM
#29
Registered User
Thread Starter
Join Date: May 2010
Location: Mid. Tn
Posts: 61
Likes: 0
Received 0 Likes
on
0 Posts
Scotty-- will read that . Haven't pulled any codes because the light hasn't been on in a few months since the spark plugs went south on me . I will try and see what I get . Thanks alot for the info , I sure hope it is electical ....
08-31-2010, 02:25 PM
#30
Registered User
Thread Starter
Join Date: May 2010
Location: Mid. Tn
Posts: 61
Likes: 0
Received 0 Likes
on
0 Posts
WOuld me driving it for a month or so like that having to manual downshift hurt the tranny ?
ALso how many qts of fluid and what type for the 99 4runner???
ALso how many qts of fluid and what type for the 99 4runner???
Last edited by coonhound130; 08-31-2010 at 02:32 PM.
Thread
Thread Starter
Forum
Replies
Last Post
Iceman4193
86-95 Trucks & 4Runners
3
07-15-2015 04:48 PM
Jnkml
95.5-2004 Tacomas & 96-2002 4Runners
3
07-06-2015 01:20 PM
