2CarPros - Car Questions & Answers

2000 Lincoln LS Repair Question


Topics covered: 134a, Battery, Blower motor.
Mileage: 144,560 miles.

Asked on March 2, 2012

What to look for when the air compressor won't come on? the fan motor is running but air compressor won't operate.

Have checked all fuses. Blower motor works. All wires are in working order. But can't find a reason that the compressor won't work. Everything else seems ok on the vehicle.
Avatar Asked by burnette's auto

Answer

Replied on March 2, 2012

Low r134a charge.

Tiny Answered by merlin2021 (expert)
18,107 answers provided
Replied on March 2, 2012

You need to start with pressure gauges. If you see over 80PSI static pressure, then you have an electrical issue and you will have to track it down with a wiring diagram.

Tiny Answered by Wrenchtech (expert)
14,829 answers provided
Replied on March 2, 2012

Have attempted to install freon. It doesn't allow it to come up to 80 psi without the compressor cyclying.

Tiny Response from burnette's auto
7 questions asked

Replied on March 2, 2012

That means you have an electrical issue that needs to be troubleshooted.

Tiny Answered by Wrenchtech (expert)
14,829 answers provided
Replied on March 3, 2012

Lincoln is VERY hard to charge to R134a spec on the decal with a charging station, take it to a garage with an a/c station, this might solve your problem. Had to do it with my own 03 TC...

Tiny Answered by merlin2021 (expert)
18,107 answers provided
Replied on March 3, 2012

The other thing is with 145,000 miles, the compressor itself could be the issue.

Tiny Answered by merlin2021 (expert)
18,107 answers provided

Replied on March 3, 2012

Refrigerant is not the reason the compressor is not coming on. It has 80 PSI static and that is plenty to energize the compressor.
Try disconnecting the battery for a minute. Some will set a code for low refrigerant and then lock out the system until the code is cleared and then it could be charged if that were the case.

Tiny Answered by Wrenchtech (expert)
14,829 answers provided
Replied on March 4, 2012

I though he said he could not get 80 psi into it... if the compressor runs but cycles due to low charge, use a charging station.

Tiny Answered by merlin2021 (expert)
18,107 answers provided
Replied on March 4, 2012

The other point with r134a is at least on FLM cars they are almost if not impossible to charge accurately with a gauge set.

Tiny Answered by merlin2021 (expert)
18,107 answers provided
Replied on March 4, 2012

What does the gauge read with the compressor not running?

Tiny Answered by merlin2021 (expert)
18,107 answers provided