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-   -   Slight gear grind in cold weather (https://www.cmoc.ca/mustang-drivetrain-87/slight-gear-grind-cold-weather-14928/)

allicedout 12-21-2010 06:26 AM

Slight gear grind in cold weather
 
Hey guys I notice I get a slight grind in 2nd and what seems to feel like a slight bite in to 3rd. But its only when the car is cold. Its about -7 C in the mornings, after the car has been running for 5-10min everything is fine. I had the oil replaced with Mercon fluid stated in the manual. Do I need to get the Syncros replaced? Any help would be great. Thanks.

allicedout 12-21-2010 09:39 AM

Someone has suggested using "Ford Friction Modifier" to help with this problem. Anyone ever use this stuff?

TonyDee 12-21-2010 10:36 AM

How about a pure synthetic?

pprince 12-21-2010 12:50 PM

How many km's on the car?

If you shift to 2nd or 3rd by going to neutral, letting the clutch out and them into gear what happens?

allicedout 12-21-2010 01:10 PM


Originally Posted by pprince (Post 136572)
How many km's on the car?

If you shift to 2nd or 3rd by going to neutral, letting the clutch out and them into gear what happens?



I'll have to try that on my way home from work and let you know. Just out of curiousity lets say it doesn't grind when I do that, what does that mean?

pprince 12-21-2010 04:21 PM

I would look first at the blocker rings being the culprit.

Do you have a lot of km's on the car?

SNAKEBITE 12-21-2010 04:24 PM

^^^great point and good question

allicedout 12-21-2010 04:55 PM

The car has a 110,000km on it. I tried double clutching as pprince mentioned, didn't help much, its almost like if I granny shift it happens or is worse, if I do quick shifts the problem is less and non existant after the car warms up. The dealer I got it from suggest trying Ford Friction Modifier, if that doesn't work i'll have to do the 2 hour drive to dealer to have it fixed, which I will, but I just want to narrow it down before I go there. I'll have to do a search on blocker rings, you'll excuse me this is all new to me. Use to driving Imports for so long. Are blocker rings a big and expensive job?

pprince 12-21-2010 05:05 PM

When you have to R&R the transmission anyway you just rebuild the entire unit.

Then with that number of km's you have to look at replacing the clutch/PP/TO Bearing/M-C /Slave at the same time. It is potentially an expensive task.

Or, you live with it until it gets really bad. Which is probably the route to go.

allicedout 12-21-2010 05:10 PM

Well thats promising! LOL. I have some warranty from the dealer I bought it from,
I just want to be informed before I go down, don't want to get BS'd by the dealer
into thinking its something less then it really is. Not sure what there going to be willing to do.
I'll keep you all posted. Does anyone think this Friction modifier will work?
All the searches i've done have people using it in there diff's, and not in the tranny.
Should I replace the fluid with some Royal Purple synthetic?


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