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#1
06-02-2009, 09:05 PM
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96 Lumina shifting problems
I have a 96 Lumina 4T60E automatic transmission.
what is happening is it does not want to shift into 2nd or 3rd unless I let off the gas pedal for moment and then give it gas again. I had the car scanned today at Advance Auto and no error codes showed up. Could this be a TPS even though it is not showing up on the scan? Thanks 
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#2
06-02-2009, 10:21 PM
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Re: 96 Lumina shifting problems
I'd lean more towards a bad vacuum modulator or the hose/line going to it....
__________________
You made three mistakes. First, you took the job. Second, you came light. A four man crew for me? F**king insulting. But the worst mistake you made... ...empty gun rack.
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#3
06-02-2009, 10:21 PM
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Quote:
Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 7.11) Sprint PPC6850SP
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#4
06-02-2009, 10:37 PM
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Re: 96 Lumina shifting problems
Are the Vacuum Modulator and PCS Solenoid both located in the transmission?
This car shifted fine before I replaced the Head Gaskets, after putting the car back togather and took for a test drive is when I noticed it. Engine runs smooth and fine on interstate just getting to the interstate is where I'm having my shifting problems. Thanks
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#6
06-03-2009, 12:04 AM
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Re: 96 Lumina shifting problems
Quote:
__________________
You made three mistakes. First, you took the job. Second, you came light. A four man crew for me? F**king insulting. But the worst mistake you made... ...empty gun rack.
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#7
06-03-2009, 01:45 AM
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Re: 96 Lumina shifting problems
I checked the line and it is not sucking air, The line and in-line filter looks very clean and dry.
I also wanted to note that I changed the trans filter and filled it back up to level with Valvoline Max Life yesterday to try and fix this problem , but of course this did not help. Thanks
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#8
06-03-2009, 10:18 AM
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Re: 96 Lumina shifting problems
Inline filter?
You may be looking at something else then. This line goes down to the front of the tranny down low, roughly under the airbox area?
__________________
You made three mistakes. First, you took the job. Second, you came light. A four man crew for me? F**king insulting. But the worst mistake you made... ...empty gun rack.
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#9
06-03-2009, 11:23 PM
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Re: 96 Lumina shifting problems
I have included some pictures for you to look at. hope I did this right
the vacuum line shown in the pictures run from #9 (vacuum diagram) and connectes to the Vacuum Modulator. you can also see the filter I was talking about in the pictures, I guess I could get rid of this filter, it could be restricting the flow and see what hapens. Thanks Vacuum Line 1.jpg Vacuum Line 2.jpg 0900c15280067ec6.jpg
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#10
06-04-2009, 12:23 AM
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Re: 96 Lumina shifting problems
Huh. Never noticed that screen before. Cool.
Sucks that wasn't it, would have been a simple, cheap solution. I might still pull the modulator off and test it with a vacuum pump, make sure it holds suction and moves the pin as it should...
__________________
You made three mistakes. First, you took the job. Second, you came light. A four man crew for me? F**king insulting. But the worst mistake you made... ...empty gun rack.
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