99VPRGTS
Enthusiast
Okay, heres the deal. My coolant level appears full (according to the guidelines in the service manual) and so does the overflow bottle (the bottle is just under max line).
Here's my problem. After the engine is warmed up, when I am sitting at idle (or in stop and go traffic), the engine temperature will slowly rise to just under 220 (the line 3/4 of the way over on the guage). As soon as the engine temp starts rising, my A/C starts getting less and less cold until it is about half as cold as normal.
Now, when I am driving on the highway, the A/C blows cold and the temp is pretty good on the engine...it goes to the line to the right of the 190 mark but doesn't get any higher.
I have blown out and inspected the condenser/radiator for obstructions and found none.
I do not know when the coolant was last changed.
I did try and service the A/C and it went okay but didn't help.
My next course of action is to have the coolant system completely flushed and then a 50/50 mix of water and coolant as well as a complete A/C vacuum and recharge.
Is there any thing else that I should do instead of what I listed above? Could it be something simple? I found a lot of info on this but no clear definitive answer for my specific problem and everyone told me to put a thread up here and let the Wizard offer his advice (or any other expert that has had experience with this problem).
My car is a 1999 GTS with 23K miles on it. Thanks!
-Brent
Here's my problem. After the engine is warmed up, when I am sitting at idle (or in stop and go traffic), the engine temperature will slowly rise to just under 220 (the line 3/4 of the way over on the guage). As soon as the engine temp starts rising, my A/C starts getting less and less cold until it is about half as cold as normal.
Now, when I am driving on the highway, the A/C blows cold and the temp is pretty good on the engine...it goes to the line to the right of the 190 mark but doesn't get any higher.
I have blown out and inspected the condenser/radiator for obstructions and found none.
I do not know when the coolant was last changed.
I did try and service the A/C and it went okay but didn't help.
My next course of action is to have the coolant system completely flushed and then a 50/50 mix of water and coolant as well as a complete A/C vacuum and recharge.
Is there any thing else that I should do instead of what I listed above? Could it be something simple? I found a lot of info on this but no clear definitive answer for my specific problem and everyone told me to put a thread up here and let the Wizard offer his advice (or any other expert that has had experience with this problem).
My car is a 1999 GTS with 23K miles on it. Thanks!
-Brent