Question about 1998 Pontiac Bonneville
How to replace heater core
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Posted on Jan 02, 2017
SOURCE: 1997 bonneville ssei
Grab yourself a cable type hose clamp tool.. a long pair of hose removal pliers. drain the radiator and remove the hose clamps and hosed from the passenger side firewall ( hidden behind the A/c acumulator ).
from the passenger side remove the end cap from the heater box under the dash. take it out and put it back together in the reverse order.
Posted on Nov 16, 2008
SOURCE: Pontiac Fiero Heater Core
no its actually really easy i just did it about 3 weeks ago. right under the dash on the passenger side the is a black box unscrew the cover on the side of it and the heater core is right there then you have to disconnect the hoses under the hood which might be the hardest part after that unbolt the straps holding the heater core on. I keep the straps on till i get the hoses off because then the heater core don't move when you are trying to get the hoses off. Then all you have to do is put it back together.
Posted on Nov 23, 2008
ram a sharp chissel or pointed head centre punch through the core and prise it out .,than tap the new one in place ,,,there u go bobs ure uncle
Posted on Jan 29, 2009
i do believe you have to take the passengers side dash apart behind the glove compartment. go to autozone and get a manual or go to the library and check the chiltons manual. this is not an easy job. how bad is the leak? if its not bad these heater cores are made of all aluminum. i would buy a bottle of that radiator additive and see if that takes care of the problem first. it only cost about 5 bucks a bottle and it may permanantly fix your problem.
Posted on Aug 13, 2009
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