what could be causing my car to overheat when it has a thermostat on but when i take it off it won't overheat is a boosted gsr

 

therostat is not opening when its suppose to. when the engine temperature reaches a certain degree, the thermostat opens up releasing the hot fluid and letting in cool fluid. iif its stuck close all the hot coolant will keep circulating in the engine and will cause it to overheat. replace with a spoon therostat or get one from the dealer

 

Is a new therostat. an it only over heats liek on the high way if i try to force the car like in 5th guear

 

whens the lsat time you changed the water pump, that could be going bad. does your fan work?

 

motor has 45k water pumps good fans works perfect if direct

 

I had this problem with the 92 dx i just got it was the cooling switch and water pump all better now.

 

are you sure you dont have air in the system?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GDM93Si &raquo;</TD></TR><TR><TD CLASS="quote">

what could be causing my car to overheat when it has a thermostat on but when i take it off it won't overheat is a boosted gsr</TD></TR></TABLE>

Sounds like it is stuck closed, but when they fail they are designed to fail open so your car runs cold rather than hot.

... and just because it is a new thermostat, doesn't mean it isn't a bad part!

A long shot: but it could be a coolant temp sensor, but based on your description, doesn't sound like it.

You can test the thermostat by taking it and putting it in a pot of hot water (and use a thermometer to see if it opens at the right temperature).

 

Thx guys it think is that it has air cus I drove the car today and it didnt over heat at all

BUT I DROVE IT NORMAL FOR LIKE 30 MINS

 

Where did you get this thermostat? It could be for the incorrect temperature range.

 

I went and bought a thermostat from the following stores
1. advanced auto
2. napa
3. auto zone
4. pep boys
5 Honda

and the results were

1.the advanced auto one was rated at 180 degree's i did a test on it and it did not open til 211 degrees. so that went back in the box $ 8.79

2. Napa rated at 160 opened up at 185 $ 9.35

3 auto zone rated at 180 and opened at 190 $6.45

4 pep boys rated at 160 and opened at 171 and the 2nd time around it didnt open til 197( it was sticking $7.84

5 honda it was rated at 178 and opened at 176. $18.92.

So its true u get what you payed for. the honda has been in for 3 days and i have yet to turn on my fan