Will not upshift,stuck in 1st gear
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Will not upshift,stuck in 1st gear
Car idles fine with no engine codes. Park, neutral and reverse work fine. when put in drive or any manual shift car attempt to shift into second gear but then bogs down and downshift back in 1st gear and stays there. This fault happens everytime while attempting to drive, and I have no clue whats wrong. It is an 06 jaguar s-type with 3.0 engine 48,000 miles.
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Now I am better understanding what you are experiencing. If that Trans wants to shift and does not then I would be looking at the trans control module and if I am correct yours is located in the trans. That trans control module takes information your engine and the engine control module. It sounds like it wants to shift and is unable.
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The valve body take a command from the transmission control module that takes command from the engine control module and that is governed by the operation of the engine. One of these are not working properly. If your engine is working properly at idle and revving then you need to look at one of the control modules or the valve body.
Remember this is not your father’s Buick.
Remember this is not your father’s Buick.