I would recommend purchasing a shop manual for that vehicle if you intend on DIY the heater core. The manual will show you step by step how to. It will be worth the investment.
How to change a heater core on a 1997 Pontiac grand am
Begin by training the water from your 1997 Pontiac Bonneville cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
A heater bypass is not an original equipment item. you would install it to keep coolant from circulating through the heater core, mostly when it is leaking.
Okay basically no idea hope that helped LOL
The heater fan is under a panel under the glove box- unclip this panel and the heater fan is right there
Where is the throttle position sensor on a 1997 pontiac grand am 4 cyl.
under the dash behind the glove box about an 8 hour job for a novis
Probably in the 1997 Pontiac trans-am heater core valve holder. If not, you probably lost it. Both the valve, and your mind.
Where are the vacuum hose located at on '97 Pontiac grand am? Where are the vacuum hose located at on '97 Pontiac grand am?
Timing on 1997 pontiac grand am 2.4
Yes
No.