Reverse and 1st gear hesitant after trans cooler installation - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Mangudai · 11-19-2009, 02:23 PM

I've checked the ATF level four times, twice cold and twice hot on flat ground. In every instance the dipstick showed a full level. To be more specific with what happens lets say I turn my car on then put it in reverse..sometimes that jolt you feel when it changed the gear will hesitate for about 2 seconds and the same thing for when I put it into 1st. Other than that though the car shifts smoother than it use to when im at speed. I checked for leaks and kinks and found none. I did spill some ATF when adding the extra hoses but didn't think anything of it as the dipstick shows its at capacity.

Any ideas?

g6civcx · 11-19-2009, 02:45 PM

Was there a stock cooler line built into the radiator?

Mangudai · 11-19-2009, 04:16 PM

Yes, I just extended the lines to the new cooler.

Jonnyblaze · 11-19-2009, 05:31 PM

5 speed swap.

brokeAs240sx · 11-19-2009, 06:08 PM

did you check the ATF level with the car running when verifying it was full?

have you tried putting the stock setup back (i.e. remove the cooler) and see if it still does it?

did you verify that the tranny fluid was flowing properly in & out of the cooler? You can do this by having a small oil pan w/ tranny fluid for the line going back into the tranny & the line coming out of the cooler disconnected. You can do this in Park or Neutral.

could also just be a coincidence... I put a very large tranny cooler on mine (Mopar cooler for a Corvette) & it shifted the same before & after the install.

GSXRJJordan · 11-19-2009, 06:17 PM

Quote:

Originally Posted by brokeAs240sx

did you check the ATF level with the car running when verifying it was full?

This......

Mangudai · 11-23-2009, 06:21 PM

While the car is running it shows the level to be extremely low but when I turn it off it goes back up to showing it as full.

brokeAs240sx · 11-23-2009, 08:32 PM

Quote:

Originally Posted by Mangudai

While the car is running it shows the level to be extremely low but when I turn it off it goes back up to showing it as full.

That's your problem. Refer to your FSM. The fluid level should be full when the car is on.

GSXRJJordan · 11-23-2009, 10:08 PM

Quote:

Originally Posted by brokeAs240sx

That's your problem. Refer to your FSM. The fluid level should be full when the car is on.

This. Cmon man, lol.

Mangudai · 11-23-2009, 10:51 PM

Yea thats my bad, I thought the FSM said to check it with the engine off for some reason :S

Thanks

11-19-2009, 02:23 PM	#1
Mangudai Zilvia Addict Join Date: Jan 2007 Location: South Posts: 656 Trader Rating: (0) Feedback Score: 0 reviews	Reverse and 1st gear hesitant after trans cooler installation I've checked the ATF level four times, twice cold and twice hot on flat ground. In every instance the dipstick showed a full level. To be more specific with what happens lets say I turn my car on then put it in reverse..sometimes that jolt you feel when it changed the gear will hesitate for about 2 seconds and the same thing for when I put it into 1st. Other than that though the car shifts smoother than it use to when im at speed. I checked for leaks and kinks and found none. I did spill some ATF when adding the extra hoses but didn't think anything of it as the dipstick shows its at capacity. Any ideas? __________________ Almost there.

11-19-2009, 04:16 PM	#3
Mangudai Zilvia Addict Join Date: Jan 2007 Location: South Posts: 656 Trader Rating: (0) Feedback Score: 0 reviews	Yes, I just extended the lines to the new cooler. __________________ Almost there.

11-19-2009, 05:31 PM	#4
Jonnyblaze Zilvia Member Join Date: Feb 2007 Location: Oxnard, CA Posts: 285 Trader Rating: (1) Feedback Score: 1 reviews	5 speed swap. __________________ '91 Hatch - Work in Progress

11-19-2009, 06:08 PM	#5
brokeAs240sx Nissanaholic! Join Date: May 2004 Location: Southern California Posts: 1,917 Trader Rating: (40) Feedback Score: 40 reviews	did you check the ATF level with the car running when verifying it was full? have you tried putting the stock setup back (i.e. remove the cooler) and see if it still does it? did you verify that the tranny fluid was flowing properly in & out of the cooler? You can do this by having a small oil pan w/ tranny fluid for the line going back into the tranny & the line coming out of the cooler disconnected. You can do this in Park or Neutral. could also just be a coincidence... I put a very large tranny cooler on mine (Mopar cooler for a Corvette) & it shifted the same before & after the install. __________________ bew bews!

11-23-2009, 06:21 PM	#7
Mangudai Zilvia Addict Join Date: Jan 2007 Location: South Posts: 656 Trader Rating: (0) Feedback Score: 0 reviews	While the car is running it shows the level to be extremely low but when I turn it off it goes back up to showing it as full. __________________ Almost there.

11-19-2009, 02:45 PM	#2
g6civcx Post Whore! Join Date: Apr 2004 Location: Virginia, USA Posts: 5,764 Trader Rating: (5) Feedback Score: 5 reviews	Was there a stock cooler line built into the radiator?

11-23-2009, 10:51 PM	#10
Mangudai Zilvia Addict Join Date: Jan 2007 Location: South Posts: 656 Trader Rating: (0) Feedback Score: 0 reviews	Yea thats my bad, I thought the FSM said to check it with the engine off for some reason :S Thanks __________________ Almost there. Last edited by Mangudai; 11-23-2009 at 11:11 PM..