96 Trans sport SE problem.

Nov 22, 2003 5 Replies
N

Hi. I've posted several times here and I get pretty good answers.



So, I have the 3.8L automatic. The problem is: By default, the automatic tranny of this van shifts into overdrive at about



45-50 mph. Once in overdrive, if I press on the gas (not a lot to downshift, but not that little) the van sort of vibrates, or rumbles amazingly. It also happened in 4th gear. It doesn't slip and if I give it enough gas, it goes back to 4th gear. I don't want to think is a tranny problem, because now is not the best time to me to spend a lot of money. I have been told it might be related to the fuel, maybe it needs more fuel. Might it be starving for fuel. Fuel filter? Before this, I had a very rough idle, and the mechanic replaced every little hose attached to the very confusing throttle body and surrounding areas. Then, bye rough idle.Now, I see nothing rare underneath that "plastic" hood. Thanx for any comment.

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=

Bad plug wires? What are the ohm readings when wires are HOT?

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R

Hi,

I have the same problem with my car. What are ohm readings and how can i get them on my GP '97?

Thanks, Roman

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C

Had the same problem with my '94 3800 Trans Sport. Chaced the problem for quite a while before figur>> >

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N

How do you determine it is the MAF sensor? Can I disconnect my MAF sensor just to perform a drive test to see the problem would go away. I understand the computer need a feedback from MAF sensor in order to control other fuel air mixture but it should have a default setting that is not fuel efficient but just for testing purpose.

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C

If it is the MAF it will go over rich or over lean (usually rich) under sustained load, tripping the check engine light with a code indicating something like adaptive limit reached, or some nebulous thing like that. Mine tripped in about 30Km of towing my trailer. With datastreamiong on a monitor, you dould find the MAF reading fluctuating under light cruise (where the "hesitation" occurs. I didn't have my scanner when mine acted up, so I chased down a used MAF and switched it to prove it was the problem. I figured if it fixed the problem, I knew it was the MAF. If it didn't, either it wasn't the MAF or the used MAF was shot too. Fixed it. Some day I want to put the bad one back on and check with the scanner to see how it shows up, for sure.

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