My aw4 shudders when downshifting to 1st

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11-26-2013, 06:46 PM

jeepsluvmud

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Model: Cherokee

My aw4 shudders when downshifting to 1st

hey guys. Just sold a 90 commanche for 600 bucks. Runs great but i get a terrible shudder when downshifting into first. If i do it manually it shifts fine. I replaced the tps and changed to fluid. What would be the next step ?

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11-29-2013, 08:17 PM

jeepsluvmud

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Model: Cherokee

bump

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11-29-2013, 10:31 PM

TheFrostySnowman

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Year: 1996

Model: Cherokee

Engine: 6cyl 4.0

Too much crud in the filter maybe... Doubt it's that easy tho

Last edited by TheFrostySnowman; 11-29-2013 at 10:35 PM.

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11-30-2013, 05:57 AM

cruiser54

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Year: 1990

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Did you adjust the new TPS?

Click on my link below and go to posts 1, 5, and 10.

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11-30-2013, 06:56 AM

Oddballmotorsports

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any check engine light? if everything checks out, I would try dumping some lucas in the trans and see what happens...

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11-30-2013, 07:01 AM

cruiser54

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Year: 1990

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Quote:

Originally Posted by Oddballmotorsports

any check engine light? if everything checks out, I would try dumping some lucas in the trans and see what happens...

No CEL on his vintage XJ.

I wouldn't go putting any snake oil additives in as it seems to be related to something electrical. I'd do another drain and fill before adding Lucas or any other stuff.

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11-30-2013, 04:43 PM

jeepsluvmud

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i did adjust the tps. there are some solenoids in the tranny i think. Anyone replace them before?

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11-30-2013, 05:08 PM

cruiser54

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Year: 1990

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Quote:

Originally Posted by jeepsluvmud

i did adjust the tps. there are some solenoids in the tranny i think. Anyone replace them before?

Did you look at the posts in the link I suggested?

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12-01-2013, 12:47 AM

TheFrostySnowman

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Year: 1996

Model: Cherokee

Engine: 6cyl 4.0

Quote:

Originally Posted by jeepsluvmud

i did adjust the tps. there are some solenoids in the tranny i think. Anyone replace them before?

I have replaced solenoids. I had an extra tranny I got mine out of. If you get em new they are pretty pricey. Usually it's the o-rings on them that go bad and get solid. I would take one out and check it out. if the o-rings are toast, replace them.

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