Question about 1997 Pontiac Grand Prix

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Doesnt blow heat except at high rpm's

Doesnt blow heat except at high rpm's

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Seems to be a bad blower relay or bad blower motor

Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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1 Answer

2002 jeep liberty heat only works at high rpm


Sounds like low flow issue. Flush and clean system, PROPERLY! Buy a flush kit, drain system, blow compressed air through, fill with cleaner/water mix, run for 30 min with heat on, drain system, blow out with compressed air, fill with water, run for 30 min, drain, blow out with compressed air, fill with 60% coolant mix.

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94 thunderbird heat or cold air doesnt blow


if you saying the fan wont blow it may need a fan motor not uncommon it might be a speed switch if it has one some time you can hook a wire on the back of the speed switch plug in to get it on high use a 14 gauge wire or bigger a small jumper bent in a loop with the rubber peeled off the ends and shove them in the switch plug find the 12 volt ht wire on the plug with light or vom then try the other wires one at a time til fan runs with ignition switch on

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1 Answer

Heater doesnt blow heat and sometimes works but only on high setting


This depends on what type of heat it is and what you are heating. If it is your car's heating then you have to wait for the car to warm up before hot air blows out.---------------------------------------------------------------------------------------
digiprog 3

Jan 10, 2013 | 2005 Pontiac G6

1 Answer

Engine overheating on low rpm


Could not agree with you more - was thinking that it was a circulation problem with coolant when you mentioned your suspicions.

May 04, 2017 | 2006 Pontiac Montana SV6

2 Answers

No heat blows air ac works


2 possibilities. 1 - the heater system isnt getting adequate hot water flow from the engine and not heating the air for your heater to function. This can be due to a defective heater control water valve, a plugged heater core, a disconnected or plugged heater hose.
2 - the system is in fact getting heat, but your heat is bypassed/lost due to dashboard vent and blend door errors breakage common with that era of jeep. have the valve/cor/heater hose flow checked. If that doesnt show issues, have the vent control system checked for blend door or dash door breakage. beware, its alot of labor to change the dash solenoids when they brake, ALOT of labopr (6 hours or more!) so if you are committed to fixing it because a solenoid and/or sensor broke in there, I highly recommend you chaneg ALL solenoids wuith new rather than risk another breaking in a month and the 6 hours of labor must be repeated.

Oct 03, 2009 | 2001 Jeep Grand Cherokee

1 Answer

Heater controll doesnt work


Check your vacuum lines. Does any air blow out at all? Is it push button, or have a slide? Could also be a bad cable.

Mar 14, 2009 | Buick Regal Cars & Trucks

1 Answer

Corolla 96 motot starts to cut and/surge in and out


firstly remove the inlet fuel line at the filter and and blow down line with a compressor ,removing fuel cap first,if this doesnt work then it could be fuel pump pressure of air flow meter ,but iam often wrong with this sort of thing and it turns out to be the radio,all joking aside try blowing out fuelline doesnt work??then take it to dealer for computer check

Nov 12, 2008 | 1996 Toyota Corolla

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