1-2 Shift probelm (4l60e)
Thread Starter
Joined: Mar 2002
Posts: 5,778
Likes: 4
From: SW Chicago, IL
1-2 Shift probelm (4l60e) I've had a 3200 Vig with trans cooler installed in my car for about 3 years already. A few months back when cleaning the car I noticed that my trans cooler lines (from the B&M cooler) were wet. Didn't think much of it since there were no drops of fluid on the ground, I just assumed it was some build-up. Cleaned everything off really good and continued to drive. A week or so later it was wet again. So I figured something had to be loose. I tightened all the lines coming off the cooler and fitting going into the stock lines. Even since its been dry.
Now comes the problem. I didn't think it leaked out much fluid and never checked the current level. After about 500 miles I started to feel my 1-2 upshift shift really slow, but kept driving. After a few more stops it kept going on so I checked the fluid and it was low a little bit more then 1/2 a quart. Bought some fluid and filled it back up to be right above the cross hatches. Problem not solved and still shifts slow from 1-2. Drove it on a small highway road to see how it drove and actually seems to get worse.
So 1-2 upshift is very slow, but everything else drives/shifts perfect. It gets worse when hotter, but back to slow when it sits all day. One question I have is would a transmission code set off a SES light? (Like a solenoid). I'm almost thinking the clutches for 1-2 probably got burnt up since the fluid was low?
Now comes the problem. I didn't think it leaked out much fluid and never checked the current level. After about 500 miles I started to feel my 1-2 upshift shift really slow, but kept driving. After a few more stops it kept going on so I checked the fluid and it was low a little bit more then 1/2 a quart. Bought some fluid and filled it back up to be right above the cross hatches. Problem not solved and still shifts slow from 1-2. Drove it on a small highway road to see how it drove and actually seems to get worse.
So 1-2 upshift is very slow, but everything else drives/shifts perfect. It gets worse when hotter, but back to slow when it sits all day. One question I have is would a transmission code set off a SES light? (Like a solenoid). I'm almost thinking the clutches for 1-2 probably got burnt up since the fluid was low?
I would pull the pan in inspect however its possible with low fluid you had low pressure for a while and glazed/burned the band. This will cause and almost slide bump like affect on the shift
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Thread Starter
Joined: Mar 2002
Posts: 5,778
Likes: 4
From: SW Chicago, IL
I guess I can drop the pan and check to see if there is anything in it. Won't get a chance till probably next week though, but not like it'll be driven.
Probably should have mentioned it earlier, the car only has 28,000 miles on it now and I probably installed the converter about 15,000 miles ago. So I doubt it could be filter related...
Probably should have mentioned it earlier, the car only has 28,000 miles on it now and I probably installed the converter about 15,000 miles ago. So I doubt it could be filter related...
