Why is there no heat in my 944 HVAC system?
The heater control valve is also controlled by a cable. So, when there’s a problem with the system where there’s no heat or excessive heat, it’s normally due to a broken or disconnected cable. On the later model 944 HVAC systems, the A/C evaporator and heater core are contained in the same housing.
Where does the check valve go on a 944?
One side of the “Y” goes to a small check valve attached to the large brake booster vacuum line at the back of the firewall. The other side of the “Y” goes through the firewall to a plastic vacuum retention canister next to the battery. Make sure all these lines are connected and don’t show any signs of cracking.
Where are the damper linkages on a 944?
Stick your head in the footwell and look up and toward the center console. You should see a small diameter metal rod which rests in a white plastic support and is held in place by a metal retaining clip. On later model 944s, there are two damper linkages instead of one and they are located behind a plastic cover.
The heater control valve is also controlled by a cable. So, when there’s a problem with the system where there’s no heat or excessive heat, it’s normally due to a broken or disconnected cable. On the later model 944 HVAC systems, the A/C evaporator and heater core are contained in the same housing.
How does the radiator work on a Porsche 944?
The radiator is a water to air heat exchanger. It consists of many rows of small water filled tubes, with fins attached to them. The hot water passes through the tubes and dumps its heat to the air flowing through the fins. The fins provide a large surface area over which this heat transfer can occur.
Where can I find a Porsche 944 fan flow diagram?
Flow diagram and description – Turbocharged 944 (clarks-garage.com) Cooling system draining, filling, and venting (clarks-garage.com) Fan operation and troubleshooting (clarks-garage.com)
What should I do about my Porsche 944?
Late 944 (1985.5 and newer) gauge removal (clarks-garage.com) Information and troubleshooting (clarks-garage.com) Solving strange gauge problems (pelicanparts.com) Repairing a squeaking or rattling rear hatch (clarks-garage.com) Rear hatch strut replacement (clarks-garage.com) Cylinder head and head gasket installation (clarks-garage.com)
Why do I have trouble shooting my Porsche air conditioner?
For R12 systems, if you see a strong stream of small bubbles you are low on refrigerant. With R134a systems or conversions we are not to concerned with refrigerant flow observed at the sight glass because the flow can be cloudy and little if any (with R134a you are more concerned with pressures and temperatures).
What causes a Porsche air conditioner clutch to melt?
When compressor run low on refrigerant or oil friction raises temperatures. The excess heat travels away from the aluminum compressor’s body and is absorb by the copper wound coil in the clutch. The insulation on the coil’s wires melts and shorts out, and the grease in the pulley bearing melts out.
How does a 944 air conditioner system work?
The early 944s have separate heating and A/C systems which provide air flow to a common mixing chamber. Each system has it’s own housing and blower. Air flow through the system is contolled by flappers which are operated by cables. The heater control valve is also controlled by a cable.
Is it possible to trouble shoot a Porsche air conditioner?
To trouble shoot the Porsche air conditioning system can be simple, then maybe not so simple. And you don’t want to hear the cliche “take it to a qualified Porsche technician”.
One side of the “Y” goes to a small check valve attached to the large brake booster vacuum line at the back of the firewall. The other side of the “Y” goes through the firewall to a plastic vacuum retention canister next to the battery. Make sure all these lines are connected and don’t show any signs of cracking.
When compressor run low on refrigerant or oil friction raises temperatures. The excess heat travels away from the aluminum compressor’s body and is absorb by the copper wound coil in the clutch. The insulation on the coil’s wires melts and shorts out, and the grease in the pulley bearing melts out.
Where can I get a Porsche 944 valve replaced?
Heater control valve replacement (944time.com) Removal (clarks-garage.com) Information and replacement (clarks-garage.com) Idle control motor (idle stabilizer) replacement (clarks-garage.com) Ignition switch replacement (clarks-garage.com)
How to repair rear hatch of Porsche 944?
Rear hatch strut replacement (clarks-garage.com) Cylinder head and head gasket installation (clarks-garage.com) Cylinder head and head gasket removal (clarks-garage.com) Cylinder head tightening sequence and torque specifications (clarks-garage.com) Headlight motor circuit operation and repair (clarks-garage.com)
Where can I find a Porsche 944 wiring diagram?
DME wiring diagram – 944 normally aspirated (clarks-garage.com) Technical information and testing (clarks-garage.com) Removal, installation, and adjustment (clarks-garage.com) Door handle tune up (pelicanparts.com) Engine oil and filter replacement (clarks-garage.com)