i have a 93 grand am 5speed, with the 2.3 quad four. while driving the temp gauge will jump eratically. also when above 200 the heater will kick out cold air, below 200 it is warm. any ideas.
i have already put a new heater core in last year
2006-12-08 08:55:16 · 7 answers · asked by cfts_2000 1 in Cars & Transportation ➔ Car Makes ➔ Pontiac
You could have compression leaking from head gasket into cooling system causing air lock . Try bleeding the air out first if that does not work have a mech ck it for blown gasket
2006-12-09 01:39:37 · answer #1 · answered by deltech 4 · 0⤊ 0⤋
You need to bleed the air out of the cooling system. The low level of coolant is causing the temp sensor to go from being in "coolant" to being out of it and exposed to hot steam, etc. Manual has instruction on how to make sure all the air is out of the engine and just coolant is in there.
2006-12-09 20:55:58 · answer #2 · answered by mohavedesert 4 · 0⤊ 0⤋
Sounds like your coolant is low. Check for water pump leak as these will leak with very little trace of a leak. If the fluid is low with the heater being the high part of the cooling system its the first to get no coolant. No coolant no heat.If coolant is up then it possible your thermostat is sticking.good luck
2006-12-08 17:03:23 · answer #3 · answered by Rudedude 4 · 2⤊ 1⤋
you might have a leak in your coolant system, and you probably also need a new thermostat
2006-12-08 17:03:56 · answer #4 · answered by Anonymous · 1⤊ 0⤋
low coolant. this system has bleeders. find them, open them until coolant comes out. (engine running)
2006-12-08 17:08:01 · answer #5 · answered by midnighttoker 3 · 0⤊ 1⤋
sounds like a bad ground. I had a fiero do that and the starter would always go bad.
2006-12-08 17:28:42 · answer #6 · answered by extramiles 2 · 0⤊ 2⤋
head gasket or leak in head or intake manifold.
2006-12-08 17:03:51 · answer #7 · answered by Anonymous · 0⤊ 2⤋