My 2008 saturn vue does not blow hot air - Saturn Cars & Trucks

SOURCE: saturn ac wont blow cold air

check cooling fan operation while ac on.If fan is working proper,will probably have stuck exspantion valve.

Jeff Barton

• 520 Answers
• Posted on Aug 27, 2009

SOURCE: air condition blows hot air but it has freon

You may have created an over charged condition and at this point the a/c compressor will cut off on high head pressures. This can be verified by installing gauges to the systems high and low side service taps and reading the pressures.An overcharged system will start the compressor briefly but soon cuts off once pressure goes to 350 - 400 lbs on the high side. Acceptable pressures for this system should be no greater than 250 high and low suction should drop to 40-50 psi.You might recover the charge and evacuate the system,then try bringing the charge back to proper level.A sight glass in the reciever drier really helps determining proper fill.Once all bubbles have dissipated from the sight glass during charging ,one should stop at that point to avoid overfilling.Too much freon is worse than a low charge especially in hot ambient conditions....

Ronny Bennett Sr.

• 6988 Answers
• Posted on May 11, 2010

SOURCE: I have a error code P0449 on a Saturne vue 2008

Evaporator emissions vent control valve

SOURCE: remote start dont work in 2008 saturn vue and its

The hood latch has a switch in it. The hood latch does not move the entire distance when the hood is closed and the switch does not close so remote start will not work. Everthing else appears to be OK. I have had two hood latch replacements on my 2008.

SOURCE: what is a code p0601

P0601 ENGINE CONTROL MODULE CHECKSUM ERROR

• The nerve center of the fuel injection system is the engine control module (ECM)
• The ECM constantly supervises the information from various sensors, and regulates the systems that start after vehicle performance.
• The ECM is also empowered to control all the diagnostic functions of the system.
• It can detect operational flaws and caution the driver through the Malfunction Indicator Lamp (MIL)
• It also records and stores a Diagnostic Trouble Code (DTC) which detects the likely problem- making parts to help the technician while repairing.
• In order to house the program information and the calibrations required for engine, trans-axle diagnostics operation an electrically erasable programmable read only memory (EEPROM) is used.
• For detecting errors in the software the ECM uses a specially devised value known as the checksum.
• The checksum (self explanatory) is a value that is the sum total of all the numbers in the software added together.
• If the values recorded by the ECM and the checksum do not match then a checksum error is highlighted.