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HEAT PUMP CH9524VKB1 - Cars & Trucks

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No heat after water pump replaced 2001 300m 3.5l


Did you change the thermostat? It could be stuck in the open positon, or in backwards, or missing all together. I would like for you to check your heater hoses where they connect to the engine, as this is a very good place for corrosion to build up, restricting coolent flow to your heater core. If this don't fix your heat, I would like to know the reason you changed the water pump. Was it overheating? Did you have heat before you changed the water pump?

Dec 08, 2013 | 2001 Chrysler 300M

1 Answer

Honeywell troubleshooting


Emergency heat is the setting that shows that your heat strips are activated. Sometimes people do not wire up the heat strips at all as the use a great deal more power than the normal heat pump uses. The problem is that a heat pump comes to a point where it is not efficient at about 28 degrees and this is where you need the heat strips or if you want to heat the house quickly which a heat pump will not do. Heat strips are located in the ductwork and act like a space heater. A H/A tech is probably needed to check this stuff out for you.

Nov 15, 2013 | Cars & Trucks

1 Answer

Checked Manual: 1996 chevrolet 3500 6.5 turbo. What is a(PMD)? manual doesnt list it.


Common Problems:
Pump Mounted Driver: Relates to thermal failures. The PMD is screwed to the DS-4 injection pump on the 1994-2001 GM 6.5 diesel utilizing fuel flow to dissipate heat. The injection pump is mounted in the intake valley (a high heat area). The PMD contains two power transistors that should be cooled by proper contact with the injection pump body. If the pump is not precisely machined to make complete contact with the transistors via the silicone thermal gasket and paste, the PMD is improperly installed without the gasket or paste, the PMD is installed off center with the pump body, or corrosion develops on the mounting surface the PMD will overheat. Several companies manufacture an extension harness and heat-sink kits. These allow an owner or their mechanic to relocate the PMD away from the injection pump to a lower heat environment and/or a place that can get more air flow.

Hope helps (remember to rate this answer)

Mar 19, 2011 | Chevrolet 3500 Cars & Trucks

1 Answer

Slow Leak in Water Pump-1999 Plymouth Voyager


What's probably happening is the weep hole on the water pump is leaking water. The weep hole is a warning sign that the water pump needs replaced. You don't have any heat because the impeller in the water pump is no longer circulating water.

Apr 23, 2010 | 1999 Plymouth Voyager

3 Answers

Can a bad water pump cause other things to not work properly? like the heat? and will it over heat?


Yes That is exaxtly what will happen, If the water pump is not pumping the antifreeze throught the system then not enough hot water will get to the heater core to give you heat inside the cabin and also not enough hot water will get to the radiator to get cooled off thus the overheating. Hope this helps.

Dec 08, 2009 | 2001 Pontiac Montana

1 Answer

No heat If I'm just idoling...


Sounds like you should be replaceing your drive belt to the water pump or the water pump needs to be replaced,idleing seems to not have the capacity to keep you heater core full due to either of the above.

Dec 07, 2009 | 1998 Ford Expedition

1 Answer

No power goes to the pump or the valve


please explain a bit better about this heat pump because mine only has AC and i cant reverse the system to get heat out of the AC unit ,unless you mean something else thats only on a californian model??

Nov 06, 2009 | 1996 Jaguar Xj Series

1 Answer

98 dodge ram overheating with no heat


Did you have your heater running when you refilled coolant after water pump changed?

Jan 20, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

2004 Mitsubishi Eclipse-no heat?


check thermostat and water pump.the water pump could be working good enough to ke the engine cool but dosnt have the pressure to push it thru. i ran in to this prob be for no heat and the engine didnt over heat. the antifreeze ate the blades off the water pump. it was crazy.

Dec 23, 2008 | 2002 Mitsubishi Eclipse

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