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crh0831 05-13-2013 05:01 PM

Can ECTS affect manual shifting?
Hello all,

It's been quite some time since I've posted and I've been searching for information on a recent issue with my 97 SL2 with 109k miles:

A few days ago on the way to work, the temp gauge shot all the way to full hot, the radiator and coolant lights came on as well as the SES light.

After only a second or two the temp gauge dropped to normal and the coolant and radiator lights went out. The SES stayed on.

Long story short - it was the ECTS. I had replaced it about six years ago with a brass tipped model after getting advice here, but this time I took the car into a trusted shop and they confirmed it after pulling the codes.

In addition, this time the wiring harness was "corroded" (their words) and was also replaced.

My question, however, is that for the last few months I have noticed a significant decrease in the ease of shifting (manual). Going from reverse to 1st almost always requires me to clutch, shift out of reverse, release the clutch, re-clutch and shift into first. The other gears are similarly difficult to get in and out of. Nothing that has ever failed outright - but it's been disconcerting.

Anyway - since I got the car back from the shop shifting has been almost 100% better! I still have a little difficulty getting from reverse to 1st, but it's so much better. Running through the other gears are smooth again and it's left me wondering what else they did to the car when they had it.

Could a bad ECTS (assuming it's been slowly going bad and didn't just die all at once) affect the ability to shift in a manual tranny? (I've read some evidence that the ECTS *does* or *can* affect auto transmissions - but I don't know how different they are for this particular question)

In any event, things seem so much better nice now. Can anyone help me determine why?

OldNuc 05-13-2013 06:18 PM

Re: Can ECTS affect manual shifting?
ECTS has no impact on manual shifting. Neither did the associated wiring. Shift cables, or gunk on the transmission levers at the transmission are the usual causes of poor shifting. Worn out clutch and/or hydraulics is another possibility.

This will let you check the hydraulics. Check the transaxle fluid level.
Clutch Wire Test
How it works

crh0831 05-13-2013 06:47 PM

Re: Can ECTS affect manual shifting?
Thanks. That confirms my suspicions. I didn't think the two were related in the way that fits my circumstances.

I guess I'll just be happy that the car is shifting better for now and leave it at that.

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