The last couple of days my C4 has some issues. When i put it in reverse, it engages it like it should. After backing out of the driveway i put it in Drive, but this takes a few seconds before it engages. When i keep the rpm a little higher, no problem, until it hit a crossing after 100 mtrs. same thing, a few seconds of nothing.

It seems that it only does it when the tranny is cold, and after those 100 mtrs the tranny works just fine without any problems and shifts are very smooth. The first thing i checked was the level of the oil, this was spot on max. I also checked if there was a vacuum leak on the hoses, but they are OK.

I was thinking if it could be that module on the far end of the passenger side of the tranny, where the vacuumline connects to. Or maybe adjust the belts?

Any suggestions? Or should i prepare a rebuild, as it's my daily driver.

 

check fluid level in C4 ... i know that's as basic reply, but being too low will cause this problem. check in park engine running, hot

 

Thanks for the reply, but i've already checked that (as mentioned in first post). Hot, engaged all gears and then checked it with running engine.

 

Has it been adjusted lately?

 

Since i own the car (jan. '09) there were no adjustments. This started a week ago, but when i keep the rpm at approx. 1200rpm, i can drive straight away like nothings wrong.
Only when i drive backwards, change to drive at idle this issue is present. After 100+ mtrs everything is just fine. I think it's just weird that it only happens when the tranny is cold.

 

i couldn't think of anything bar belts and fluid level.
when she's cold and you put here straight into drive. same problem?

what i mean does it take a while engaging hot or cold?

 

The first engagement of the gear it grabs it like it should, but when if shift from R to D in idle, the D won't engage for a few seconds. So far only when it's cold. I haven't tried it straiht ino D yet, i'll park the car with the nose towards the street tomorrow.

 

I tested if the car had the same symptoms While in Drive. I parked the car at work facing toward the street, it engaged right away like it should. But when i got up to the street to turn on it (while idling) same thing happend, it was still in D but like there was no Drive. After revving a bit and after 5 secs it was all ok, so i drove home.

Can someone measure his dipstick? And for those with a dirty mind, i mean the one from an '66 C4 tranny.
I was thinking what if there's a wrong one in mine.

 

What does the fluid look like?
Is it translucent red or is it cloudy and brown? Does it have a burnt smell?
Changing the fluid and replacing the filter is a good place to start. At least you will know where your at on that. There are sliding spool valves in the valve body that can gum up and new fluid can help clean them.
Maybe the low-reverse bands need adjustment. It is easy if you have a torque wrench that is accurate at 10 foot pounds.

 

Check the FAQ, there is a link to a band adjustment procedure in there. If that doesnt cure it, then its time for a freshening.