AboutDennis Altman Expertise Electronic Air Suspension. I specialize in Range Rover air suspension diagnosis and repair, particularly the p38 with some experience with Classics.
Please, air suspension related questions only, I am not an expert on LR's in general.
www.rover-renovations.com
Experience Specialist suppliers of RR eas parts and repairs, extensive experience in troubleshooting and fault finding on the air suspension system
Organizations MENSA
Education/Credentials 7 years US Navy mechanic, high and low pressure pneumatics and hydraulics, nuclear power plant operator.
Expert: Dennis Altman Date: 7/6/2008 Subject: air compressor for range rover hse 4.6 96
Question i was driving, suddenly the air compressor stop working. truck went all the way down can not drive past 35 mph. compressor is working if i do it manually, but seems compressor has no power. what do you think?
Answer This is (unfortunately) a common problem with the aging range rovers. As the system ages the airsprings and orings will begin to leak and the compressor seal will wear. The leaks will add to the wear on the compressor until it cannot keep up. The computer will detect that the compressor isn't working and stop it to prevent damage beyond normal wear.
With any RR older than a '99 I recommend a full overhaul:
After fitting that you will need to re-set the ECU to restore normal operation. There are several options available now, one is a free program for download:
