MY1PATH Posted March 4, 2008 Share Posted March 4, 2008 All winter my trucks been running cold and sucking gass, I thought it was the new aluminum radiator I put in last summer. But now with the temps in the 50s and rising, I see it still wont warm up so I'm thinkin' my thermostat needs replaced. I checked out themostats today and found out 2 types are offered @ the Auto shop; 170- OE temperature 180- Alternate temp I was gonna buy the 180 to try and copensate for the Aluminum radiator. But I thought I'd ask here first; Is there any other reason I should chose one or the other? Winters here get below 0 and summers peak @ arround 90. Not the hottest or coldest of climates, just a wide spread. Link to comment Share on other sites More sharing options...
GhostPath Posted March 4, 2008 Share Posted March 4, 2008 Use the OE one. The thermostat will regulate temps. Link to comment Share on other sites More sharing options...
94extreme Posted March 4, 2008 Share Posted March 4, 2008 yeah, use the OE one as that's what the engine was designed to have. Link to comment Share on other sites More sharing options...
msavides Posted March 4, 2008 Share Posted March 4, 2008 yeah, use the OE one as that's what the engine was designed to have. I don't want to be the third one in a row to say this. But, well 3 times I have bought an aftermarket thermostat and all three times I ended up returning them, not becaus they did not work, it was because I compared the aftermarket one with the oem one I removed. they have all been built so much better that the aftermarket ones. and I do not trust an overheated engine on some cheap crap aftermarket. And the nissan one was the same price as the aftermarket one (in my area) Just my 2 cents Mark Link to comment Share on other sites More sharing options...
Casey.T Posted March 4, 2008 Share Posted March 4, 2008 JDM 160'.... Im running OEM 170's in all 4 pathfinders.... Link to comment Share on other sites More sharing options...
MY1PATH Posted March 5, 2008 Author Share Posted March 5, 2008 Sounds like the OE 170 seems like the way to go. thanks guys gonna knock that one out this weekend. Link to comment Share on other sites More sharing options...
Terrano1992 Posted March 5, 2008 Share Posted March 5, 2008 170- OE temperature180- Alternate temp From "Nissan Technical Bulletin" NTB94-020: Nissan has approved 180F thermostat usage (from Maxima/Quest, Nissan p/n 21200-0B000) on a Pathfinders/V-6 Trucks in severe cold regions, if customer has complaints of poor heater performance. 170F is a standard (factory installed) thermostat, recommended to use in normal (not cold) weather. Link to comment Share on other sites More sharing options...
MY1PATH Posted March 6, 2008 Author Share Posted March 6, 2008 So I took out my thermostat this morning, put it in a pot of hot water with a thermometer touching the spring. it started to open @ 170 and reached full open @ 190. it has 76.5c stamped on it which is 169.7F Im still gonna replace it cause its out and its the original. But I'm wondering what the problem could be with my warm up. My fan clutch is fine, my warm up idle is set to 1300. The vacum system for my hot air pickup works fine and the door opens when its warming up. I have headers and sopposedly those reduce exhaust gas temp and in turn bring down engine temps but would it bring down the temps by that much!?? I also have an oil cooler with a thermostat to bypass it until the oil reaches 180f. I'm thinking of removing that tho and I know the thermo for the oil cooler works cause the lines to and form the cooler are cold and all other oil lines are warm. Link to comment Share on other sites More sharing options...
GhostPath Posted March 6, 2008 Share Posted March 6, 2008 Checked your fan clutch lately? It could be seized. Link to comment Share on other sites More sharing options...
Kittamaru Posted March 7, 2008 Share Posted March 7, 2008 (edited) ...Im still gonna replace it cause its out and its the original. But I'm wondering what the problem could be with my warm up. My fan clutch is fine, my warm up idle is set to 1300. ... *grins* Seems this time I caught you GhostPath Edited March 7, 2008 by Kittamaru Link to comment Share on other sites More sharing options...
GhostPath Posted March 7, 2008 Share Posted March 7, 2008 Not really. "My fan clutch is fine"? Well, fan clutches can go bad in an instant and he didn't state how long ago he replaced or checked it. In fact, I had a Hayden go bad on me two years ago - a week after I installed it. Moral of story: If the obvious part wasn't causing the problem, time to check and DOUBLECHECK everything else. Again. Link to comment Share on other sites More sharing options...
Kittamaru Posted March 7, 2008 Share Posted March 7, 2008 True, true But I just wanted the chance to say that back to ya after you did it, what, three times to me at least? Just takin the micky out on ya mate Link to comment Share on other sites More sharing options...
MY1PATH Posted March 7, 2008 Author Share Posted March 7, 2008 True, true But I just wanted the chance to say that back to ya after you did it, what, three times to me at least? Just takin the micky out on ya mate to solve your bickering, I checked all that this morning b4 I took it apart. Link to comment Share on other sites More sharing options...
MY1PATH Posted March 7, 2008 Author Share Posted March 7, 2008 So... Any other Ideas? Link to comment Share on other sites More sharing options...
GhostPath Posted March 7, 2008 Share Posted March 7, 2008 What's your antifreeze/coolant composition? Link to comment Share on other sites More sharing options...
MY1PATH Posted March 9, 2008 Author Share Posted March 9, 2008 What's your antifreeze/coolant composition? In the winter I use about 75% collant to 25% water. soposedley this helps since coolant designed as a rust inhibitor / boiling temp riser and does not disipate as much heat as water. In the summer I run 50/50 Is this wrong? Link to comment Share on other sites More sharing options...
Slick Posted March 9, 2008 Share Posted March 9, 2008 i've always used the prestone 170 t'stats and had very good results with them. Link to comment Share on other sites More sharing options...
robert Posted March 24, 2008 Share Posted March 24, 2008 Well hell I ran my with no coolant for about a week than realized i was out.. Temps never got above normal even at speeds of 90mph+ Link to comment Share on other sites More sharing options...
02silverpathy Posted March 24, 2008 Share Posted March 24, 2008 I have a friend with an older (s-10) Bravada, he was having cooling problems. Had a new T-stat installed, checked the fan clutch, coolant level...seemed to be a mystery. Turns out previous owner had used 1 type of coolant and himself another and voila funky stuff in the radiator and heater core. The flush job took 2 efforts from the local ma-pa radiator shop and charged $165....all better now. My man said that the stuff they showed him that came out looked awful! They do not believe that there is any damage inside, just jammed up is all. Link to comment Share on other sites More sharing options...
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