Speedometer Trouble
Hey everyone! I've been searching for an answer to this problem for about a week now, and can't seem to figure it out. I'm pretty new to working with my car, but I'm learning as best I can (we all have to start somewhere, right?).
So! Basically, I have an 04 3.9 v6 with an automatic transmission which has recently been acting up: the speedometer reads 50-70mph even when in park, and jumps around in all other gears. It shifts fine at highway speeds, but if stopped at a light, it acts as if it's skipping the lower gears when I try to accelerate (it eventually catches up and slams into gear somewhere around where I think third should be). Also, whenever I stop at a light, I can hear a short "whooshing" sound from the passenger side of the engine bay. Additional symptoms are that the Overdrive off light keeps flashing (In my research, this indicates a transmission code has been stored... but I haven't been able to pull any), and the odometer ticks up. I replaced the VSS because I figured that would be a good, easy place to start. It seemed to make things better for about a day... then I was right back to where I started. I would love to have some help on this! I'll apologize in advance for how inexperienced I might sound on this lol |
I would have said start with the VSS but you already did that. The speedo is full electric on your year so its that, the wiring to or the cluster itself.
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Just went through this with my truck, and had to have the transmission rebuilt. Had the same symptoms as you are describing, loss of gears and the overdrive light blinking. I found the overdrive light blinking means it is a transmission slippage fault. I would have to say time to have the transmission repaired.
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