Question about 2002 Ford F250 Super Duty SuperCab
Checked voltage to clutch but has none (meaning the controller is not sending the signal ok), the cycling pressure switch on the low side is open with the engine off, and open with the engine running, I removed it and still checks open, not sure if it its the normally open type or normally closed type. If I jump short the terminals to the low pressure switch, then the compressor clutch engages........... The high pressure limit switch on the high side (on top of the compressor is closed with engine off and closed with engine on and AC running. Blower motor runs fine in all settings, but blows hot air only. makes little temperature difference when set to AC setting. QUestion is...... Is the low pressure switch the normally colsed type? and .......what's the normal reading on the high pressure side of the line? I have an A/C manifold set to check both pressures. thanks for any inputs.
Your system might be low on freon. Get a kit with a hose that has a gauge on it so you can see if you are in the "Good" range. The cycling switch won't close unless there is enough freon in the system. You can temorarily jumper the connector for the cycling switch to see if the compressor will come on. If it does, you are low on freon for sure. Do not let the compressor run for more than 15 - 30 seconds with it jumpered.
report back results.
Posted on May 21, 2009
Sounds to me like its simply ran out of gas!, get the system inspected, the clutch wont engage if there is no pressure in the system, hence the switch problem.
Get it recharged and check for leaks, vehicle with air con will loose around 50grams per year from normal usage, if its been years since it was check it could simply just need recharging.
Posted on May 21, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 19, 2017 | 1998 Pontiac Bonneville
The electronic brake control module (EBCM)
The powertrain control module (PCM)
The sensing and diagnostic module (SDM)
You need a factory scan tool to diagnosis , it's the only way to see if transmission is sent an received !
The intake air temperature (IAT) sensor is a thermistor which measures the temperature of the air entering the engine. The Powertrain Control Module (PCM) applies 5.0 volts through a pull up resistor. When the intake air is cold, the sensor resistance is high and the PCM will monitor a high signal voltage on the IAT sensor signal circuit. As the intake air warm, the sensor resistance becomes lower causing the PCM to monitor a lower voltage. If the PCM detects an excessively high IAT sensor signal voltage (low temperature indicated), DTC P0113 will set.
Test the signal circuit of the IAT sensor for a short to voltage. Refer to Wiring Repairs in Wiring Systems.
Do you ko
Sep 08, 2015 | 2000 Chevrolet Malibu
Jun 14, 2014 | 2006 Chrysler Crossfire
Jul 04, 2013 | 2001 Isuzu Rodeo
Aug 19, 2011 | 2001 Jeep Grand Cherokee
Aug 03, 2011 | Buick Century Cars & Trucks
Aug 31, 2010 | 2007 Honda CR-V
May 08, 2010 | 2002 Lincoln LS
Jun 14, 2009 | 2001 Chevrolet Silverado 1500
Oct 04, 2014 | 2002 Ford F250 Super Duty SuperCab
1,534 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: