i replaced the water pump on my 2006 grand prix and according to the gauge it still overheats. i plan on changing the thermostat tomorrow. if that doesnt work, what next?

i replaced the water pump on my 2006 grand prix and according to the gauge it still overheats. i plan on changing the thermostat tomorrow. if that doesnt work, what next? 4 Answers

ive got an issue with my car. i have a 2000 Pontiac Grand Prix GTP. on Thursday I preformed an engine degrease and sense then my fans won't run, my car uses more gas then it should (and by that i mean when i tap my gas peddel i go up to 3000 RPM and slowly drop back down), and my engine temperature gauge only goes up. it used to bounce around Ive narrowed that last one down to the Thermostats. despite whats going on if i unplug my engine temperature sensor it the fans and the gas work normal again. Ive already replaced the sensor so im up for any suggestions. 2 Answers

ive got an issue with my car. i have a 2000 Pontiac Grand Prix GTP. on Thursday I preformed an engine degrease and sense then my fans won't run, my car uses more gas then it should (and by that i mean...

2 yrs.,ago, i had to replace the water pump for my 2006 pontiac grand prix as well as the thermostat, that was in october, when winter came in late january of the following years, no heat. verything 4 Answers

the heat has not worked in two years. in winter if the outside temp is above 35, the heat works just fine, I even have to lower it. if the outside temp falls below 32 or 33, no heat at all. the com...

I change my water hose on a Grand Prix 2006 3800. Then I change the thermostat but it still rising but never go in the red I don't have any leak anywhere but I have to out more water in it. This start 1 Answer

What else do y'all think is wrong?

I bought EGR Valve & Catalytic Converter for 2002 Pontiac Grand Prix GT 3.8L with 225k on Friday, Saturday I had it installed, I should of done the EGR myself just I'm not good with those things & didn't know if I replaced the EGR before the Catalytic Converter if that would mess anything up one before the other as I don't want to be stranded. Only thing is after those 2 things were replaced it still runs like crap. Suggestions? I've asked around. I've been told to get it hooked up to a computer. I contacted another mechanic in MN & he told me take the throttle body off & clean well & then replace.??? 8 Answers

I bought EGR Valve & Catalytic Converter for 2002 Pontiac Grand Prix GT 3.8L with 225k on Friday, Saturday I had it installed, I should of done the EGR myself just I'm not good with those things & did...