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General Forums => The Mess Hall => Topic started by: gomi on November 13, 2006, 07:04:06 PM
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Does anyone know if the throttle body spacer could cause any shifting changes? I have a 99 auto and just added the spacer on friday. It seems to be shifting differently, kind of jumping through the first two gears, hope that makes sense. Before the spacer I had already added the jetchip stage 1, and an aem intake. I don't know, but it is shifting very differently, almost jumping.
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well lifting the throttle body could have changed the tension on the detent cable which tells the transmission when to shift. this is a cable attached to the bottom of the throttle linkage that is pulled out when the throttle cable is pulled. my yj was doing that when i first bought it and i had to bend the bracket backwards a little to get it adjusted. the tj may be different though.
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i think i remember reading about this hear before.... a search may help.
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yep you have to lift the throttle cable tower the amount the spacer lifts the throttle body. so say you have a one inch tbs, you need to figure out a spacer one inch long for the cable tower.
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I've done the same thing and notice the slow shift between the 1-2. 2-3 is fine. Does the tranny actually shift based on a throttle position cable, or is it by vacuum or pressure within the trans itself?
I believe the auto for the TJ 4cyl is a 904 model.
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yep you have to lift the throttle cable tower the amount the spacer lifts the throttle body. so say you have a one inch tbs, you need to figure out a spacer one inch long for the cable tower.
This may in fact be my problem, I bought a spacer online for $26 and the instructions don't mention adding the other spacers although they were included. I thought perhaps they were only used on the 4.0 I'll give it a try once it stops raining. Thanks for everyone's help.
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I've done the same thing and notice the slow shift between the 1-2. 2-3 is fine. Does the tranny actually shift based on a throttle position cable, or is it by vacuum or pressure within the trans itself?
I believe the auto for the TJ 4cyl is a 904 model.
Hmm...mine is shifting quickly, going through 1-2 then 2-3 very quickly. Much faster than before. Let me know if you find out more about this. Thanks
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Gomi,
There are some previous threads on this. Basically, if you don't raise the throttle cable bracket the cable will bind and give you the unusual shift. Make sure you lube both the cables after you raise them and make sure they are position so they won't bind. Clip them back on so they look the same as when you took them off. If you use the spacers you have you will have to cut the bracket to fit. I used 1/2" spacers I had and they were enough - no cutting. :D
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Gomi,
There are some previous threads on this. Basically, if you don't raise the throttle cable bracket the cable will bind and give you the unusual shift. Make sure you lube both the cables after you raise them and make sure they are position so they won't bind. Clip them back on so they look the same as when you took them off. If you use the spacers you have you will have to cut the bracket to fit. I used 1/2" spacers I had and they were enough - no cutting. :D
I tried to do a search but a million threads came up. You have to cut the bracket, ouch..seems like a pain.
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yes you have to cut that one tab off the bracket, and get larger bolts from homed depot, of wherever you get them. i used four nuts, i duct taped together for my spacer, ghetto yes but it worked like a charm.
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yes you have to cut that one tab off the bracket, and get larger bolts from homed depot, of wherever you get them. i used four nuts, i duct taped together for my spacer, ghetto yes but it worked like a charm.
Yes, I saw what you guys mean when I went out to take a look at the bracket. The little peice in the middle would be in the way. I took out the dremel and cut it off. Then added the spacers, but will have to wait till later to give it a drive.
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Problem solved. Thanks for everyones help.