holdenhunt Posted August 17, 2011 Report Share Posted August 17, 2011 Ok I just finished a cam swap three days ago. Since then Ive noticed that my engine coolant temp is peaking around 210 at times and this is with a 160 thermostat. Before the swap the hottest temp I would ever see is 190. I have idled the truck up to normal operating temp and then opened the coolant resevoir in hopes of getting air out of the system which did not help. Whats going on? Also since I installed headers 3 weeks ago Ive noticed that my tranny is running hotter close to 200 degrees but just shy. I even wrapped the tranny cooler lines with the high temp rubber houses included in the pacesetter kit. Do any of you have similar problems? Is this normal for having headers and a cam or what? Quote Link to comment Share on other sites More sharing options...
Cramer Posted August 17, 2011 Report Share Posted August 17, 2011 Did you get the truck retuned? Try purging the cooling system again. Also check the trans lines that come close to the headers to makesure they arent contacting the headers or exhaust at all. Quote Link to comment Share on other sites More sharing options...
holdenhunt Posted August 17, 2011 Author Report Share Posted August 17, 2011 Yes I had it retuned already and the cooler lines are close to the header but not touching id say it has about an inch of clearance. Quote Link to comment Share on other sites More sharing options...
Badazzchevy327 Posted September 5, 2011 Report Share Posted September 5, 2011 subing. im trying to track down a trans heat issue. mine eletrical but just looking at ideas Quote Link to comment Share on other sites More sharing options...
zippy Posted September 5, 2011 Report Share Posted September 5, 2011 There are many things to look at, but first would be a tune issue. If you haven't got that dialed yet the pcm can incorrectly think there is a missfire condition occuring which will cause a few issue's. One of those issue's would be that the tcc will not be locked. This will create more heat in the transmission as well as the engine. Since you have an 04' I'm assuming you have the clutch fan still which will not fully engage at a low temperature anyway and will cause the engine to run warmer, but not overheat. Quote Link to comment Share on other sites More sharing options...
Badazzchevy327 Posted September 16, 2011 Report Share Posted September 16, 2011 any ground problems? weird both trans and engine say hot. Quote Link to comment Share on other sites More sharing options...
holdenhunt Posted September 22, 2011 Author Report Share Posted September 22, 2011 Well I found the culprit, at least on the engine temp anyways.I mistakeingly purchased Dexcool that was not already mixed 50/50 and it was just straight antifreeze. So i drained and refilled the radiator to a 50/50 mix and instantly my temperature dropped back down to normal within 175-180. I just hope that by running it for 3 days before i found the problem did not damage my cooling system. As for the transmission Im just gona slap a Trucool 40k in it and be done with it. Quote Link to comment Share on other sites More sharing options...
misterp Posted September 22, 2011 Report Share Posted September 22, 2011 Thanks for the update - good to hear that you found and fixed the issue. - Steve Quote Link to comment Share on other sites More sharing options...
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