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96 gmc jimmy. need help asap


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mtgeorge741
User

Nov 13, 2012, 2:40 PM

Post #1 of 6 (687 views)
96 gmc jimmy. need help asap Sign In

it seems to drive almost fine when going slow (0-10mph). when i try to go any faster, it gives a hard time. i'll be giving it gas and it doesn't want to grab any gears. the rpms will get high and have to keep them high in order to get it up to speed. after awhile it'll finally grab a gear but sometimes it'll fluctuate as in it'll continually go in and out of how it should be. i tried to shift it down from overdrive to drive then 2nd then 1st but it doesn't make any change at all in how it acts. acts still exactly the same in 2nd n 1st like they don't exist. and if i am sitting at a stop sign or light for a few minutes, it will sometimes stall out.


Discretesignals
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Nov 13, 2012, 4:34 PM

Post #2 of 6 (662 views)
Re: 96 gmc jimmy. need help asap Sign In

What is the condition and level of the transmission fluid? If the fluid is dark and smells burnt, you have some cooked frictions inside the transmission.

Check engine light on?





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(This post was edited by Discretesignals on Nov 13, 2012, 4:35 PM)


mtgeorge741
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Nov 13, 2012, 5:21 PM

Post #3 of 6 (646 views)
Re: 96 gmc jimmy. need help asap Sign In

transmission fluid is normal color. haven't smelled it though. the level is a little above full. check engine light is on. codes say multiple misfire. cylinder 4 misfire. oxygen sensor not responding. and another oxygen sensor code


Discretesignals
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Nov 13, 2012, 5:42 PM

Post #4 of 6 (644 views)
Re: 96 gmc jimmy. need help asap Sign In

Probably be a good idea to find out what is causing the misfires before going after the transmission. If the engine is running bad, the transmission's operation can be affected.





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mtgeorge741
User

Nov 13, 2012, 7:46 PM

Post #5 of 6 (634 views)
Re: 96 gmc jimmy. need help asap Sign In

okay... so would a bad crankshaft sensor and cam sensor do these things?


Discretesignals
Ultimate Carjunky / Moderator
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Nov 14, 2012, 5:52 AM

Post #6 of 6 (625 views)
Re: 96 gmc jimmy. need help asap Sign In

It's possible, but it really needs to be diagnosed to what is causing the misfire(s) before replacing parts.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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