does 92 q have factory transmission cooler?

Got questions about your Infiniti? We're here to help, and it's FREE!
User avatar
LAQ
Posts: 191
Joined: Fri Jan 31, 2003 11:49 pm

Post

i tried the search , but couldnt find the spacifics.does my car have one? i could call the dealer and ask since they replaced the whole thing about 30k ago, but when i need straight answer, i return to nico.

fred? daedalus?


greg_atlanta
Posts: 1111
Joined: Tue Jul 23, 2002 4:37 pm
Car: 2008 G35 Journey Sedan, silver/black (no sunroof), 1992 Q45 (in a past life)

Post

No factory cooler but easy to add aftermarket cooler for about $100-150. Dealer probably won't do it, but independent shop can. Others can give parts specifics.

User avatar
PalmerWMD
Posts: 14329
Joined: Mon Apr 29, 2002 3:14 pm
Car: 2004 350Z

Post

It has a factory heat exchanger , which they sometimes call a "cooler" but it really isnt one like Greg said.

After market transmission coolers are de rigeur here if you want your transmission to last in a hot climate (which is ALL of the USA in summer).

they are cheap, $45-80 in parts depending on model, also can be DIYed.

Or a transmission shop or small shop can but it in for not too much $.

Fred...:)

User avatar
PalmerWMD
Posts: 14329
Joined: Mon Apr 29, 2002 3:14 pm
Car: 2004 350Z

Post

The most popular models are fom hayden and B&M,

Preferred location us between, radiator and AC condensor.

Fred...:)

User avatar
szh
Posts: 15932
Joined: Tue Jul 23, 2002 12:54 pm
Car: 2018 Tesla Model 3.

Unfortunately, no longer a Nissan or Infiniti, but continuing here at NICO!
Location: San Jose, CA

Post

greg_atlanta wrote:No factory cooler but easy to add aftermarket cooler for about $100-150. Dealer probably won't do it, but independent shop can. Others can give parts specifics.


Some Infiniti dealers will do it. I had an external B&M installed (purchased on my own hook) on my 1995 Q by Frontier Infiniti in San Jose, CA. of course, I was also having them put in a rebuilt transmission at the time, so that may have influenced their decision. :)

Note that they wanted to put the external cooler in series with the existing radiator cooling that is done on a stock Q, and I made sure to nix that. The transmission fluid in my setup is cooled strictly by the B&M.

Z

DAEDALUS
Posts: 5421
Joined: Mon Jul 22, 2002 8:50 pm
Car: 1990 Infiniti Q45

Post

The B&M 70268 fits well, as does at least one model from Hayden, though I don't have the part #. I've bought 3 from Summit Racing (http://www.summitracing.com). Their website is a bit clumsy, but the service is good and their products have arrived fast and well-packaged. That one cost $54 delivered.

User avatar
szh
Posts: 15932
Joined: Tue Jul 23, 2002 12:54 pm
Car: 2018 Tesla Model 3.

Unfortunately, no longer a Nissan or Infiniti, but continuing here at NICO!
Location: San Jose, CA

Post

DAEDALUS wrote:The B&M 70268 fits well, as does at least one model from Hayden, though I don't have the part #. I've bought 3 from Summit Racing (http://www.summitracing.com). Their website is a bit clumsy, but the service is good and their products have arrived fast and well-packaged. That one cost $54 delivered.


Thanks, Daedalus! I was scratching my head for the name of the place I got it from. Summit Racing is it! The price was right and the cooler seems to be doing its job well enough. I am now 8k miles into the new transmission and all is well (KNOCK ON WOOD!).

Z

User avatar
LAQ
Posts: 191
Joined: Fri Jan 31, 2003 11:49 pm

Post

daedalusmaybe we should set up a time and you can take a look at my car for me first?

i figure when you do the guides, might as well add new transmission cooler, mounts on the q?

i cant think of anything else, but want to also show you the records from the dealer to double check what else it might need.

let me know,

DougQ45
Posts: 195
Joined: Wed Aug 07, 2002 6:05 pm
Car: Q45, porsche 928 S 5 speed

Post

LAQ: Check your vehicle service history. There was a "retro" cooler Infiniti added to several of the older Q's. My 91 had one installed by the dealer at around 41,000, and its still going strong at 187,600. BTW, they also added an in line filter kit as well with the same service.

gdude45
Posts: 33
Joined: Fri Dec 27, 2002 7:45 am

Post

hello;

I have a 93 J30 and have been thinking about getting a transmission cooler installed. I have had the pan drop and synthetic ATF added a couple of months ago just after i bought it based on NICO recommendations. I was interested in the comment not to have it installed in series with the radiator ... how should it be installed properly.

P.S. - while on the subject of transmissions. When I took it in for service the technician said the underside of the car is pristine and virtually new and that the tranmission is in excellent shape. I notice that shifting between 1st and 2nd gear has always been a little rough on this car. Is that normal. If not what should I check? Any help appreciated. Thanx.

DAEDALUS
Posts: 5421
Joined: Mon Jul 22, 2002 8:50 pm
Car: 1990 Infiniti Q45

Post

Whether you should install a cooler in series with the heat exchanger or not is open for debate, and may depend on the climate in which you drive. Without it in series, you don't get the benefit of the coolant helping to warm up the ATF at startup and in cold weather. In very hot climates, a separate system *might* be better overall, but I really don't know. The radiator was designed to work with 2 fluids; by removing 1 fluid, I'm certain the overall cooling capacity of the radiator is diminished, but might be OK since it is only cooling AF. The other question, then, is whether or not the external cooler is sufficient to cool the ATF on its own. Again, I don't know. My hunch is that, in most cases, it's better to have them in series but without experimentation that's nothing more than a guess.

landtodd
Posts: 261
Joined: Thu Jul 25, 2002 7:05 am

Post

It was Dennis' suggestion, I believe, to switch to Mobil 1 Syn ATF at the same time due to its superior low-temp flowability (is that a word?). Cold fluid locks out torque converter lockup, if I remember correctly, so the TC warms the fluid pretty well all by itself. Using the traditional heat exchanger is like carrying coals to Newcastle here south of Atlanta.


Return to “Infiniti Online Mechanic”