^bump.....

 

Sounds like the Thermostat may be sticking. I would try an OEM Thermostat and see if that corrects the problem.

 

yeah the fans definatly kick when its heating up.. can i just remove the stat the see if that alone corrects the problems without buying a new one first ?

 

Well I was quoted $45 at CC and im sure NAPA wont be that much cheaper. So no point in buying the part if I can diagnose it first. Thanks for the input though, cheers!

 

NO!! OEM thermostat or don't bother.

 

Yeah only use OEM thermostats. It's a cheap part, but an extremely vital part.

 

Ah, I was unaware. Why is it so important that an OEM thermostat should be used ?

 

This post reminded me of my 96K concerns and subsuquent BHG evidence
at 240K. Go to the radiator/Ac people or the dealer. Maybe change the
thermostat. Do do the radiator CO2/chem blue tests to see if hydrocarbons
are in you radiator. Do the leak down test, Do the cylinder compression tests.
You may not do these all at once; however, if symptoms persist.progress,
you will have entered the BHG zone which is ultimately revealed when nothing
works despite how much and how often you add coolant. The vehicle is noted
for over heating/head gasket related issues. Get the leak down test. Check
the radiator with NAPA hydrocarbon test(Chem blue?) Short term resolution
may be comforting, but,. no heat in the winter will be a "first alert." I spent
beaucoup dollars on the cooling system (Thermostat, radiator, hoses,clamps,
etc.) before I realized/accepted that co2 was escaping from my cylinders
into my cooling system. In fairness, the problem may have been an undertreated coolant problem that lead to the BHG. Once it was in progress.
it kept going and going. This site was the ultimate source of diagnosis.
Final thought: overflow tank, exhaust smoke, erratic idle, erratic Temp gauge?
Do a search; overheating 101 is an excellent start. Meanwhile carry water
and Acura Type II coolant although Type II might be an afterthought at
this stage. I hope that I am wrong. Good luck.

 

Ok.. Im not blowing out white smoke, or losing coolant.. but my emgine temp. will rise randomly.. and go back to normal temp. While driving, if it rises, it will hit the top, then go right back to normal.. if it rises while idling, it will stay hot, but after acceleration it will go back to normal once again.

Does this make sense to anyone ? Im hoping its just my thermostat but would definatly like some expertise before I start doing anything..

Thanks in advance!

Your not losing coolant, but is the coolant overflowing the reservoir? My temp niddle has been going up to high and then back down to normal as well. I've replaced it with an OEM t-stat from Acura for $32. Seemed to work fine for a week, but it came back... I've read on here that it could be the sensor that reads the coolant. Keep me updated on your Legend, as we are both seeing this problem.

 

Ok.. Im not blowing out white smoke, or losing coolant.. but my emgine temp. will rise randomly.. and go back to normal temp. While driving, if it rises, it will hit the top, then go right back to normal.. if it rises while idling, it will stay hot, but after acceleration it will go back to normal once again.

Does this make sense to anyone ? Im hoping its just my thermostat but would definatly like some expertise before I start doing anything..

Thanks in advance!

Your not losing coolant, but is the coolant overflowing the reservoir? My temp niddle has been going up to high and then back down to normal as well. I've replaced it with an OEM t-stat from Acura for $32. Seemed to work fine for a week, but it came back... I've read on here that it could be the sensor that reads the coolant. Keep me updated on your Legend, as we are both seeing this problem. By the way, does the radiator itself feels hotter than normal?