Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Thread Tools Search this Thread

Old 06-16-2011, 04:08 PM
AllOriginal AllOriginal is offline
Learning to use the forums
Join Date: Jun 2011
Posts: 1
Default a/c compressor cycling losing voltage at idle speed

I have 89 ranger, v6, 2.9L. The a/c clutch cycles off/on about every 2 seconds at idle, as soon as engine is brought up to 1200 rpm or higher the a/c clutch engages and works normal.

I've verified I am losing voltage at the compressor each time it cycles off/on.

I put gauges on system and low and high side pressures are normal.

I replaced wide open throttle relay and throttle position sensor.

I bypassed the low pressure switch and the clutch still cycles.

Any ideas on what I should check next?

Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Want to Buy: 4C 2.0 Carbed 85/86 Idle speed control module. Ahum Engine & Drivetrain Parts 0 05-24-2011 05:16 PM
adjust idle speed kilich 2.9 Liter Tech 1 01-04-2011 04:03 PM
Miss at idle speed 99 4.0 blueovalhawkeyefan 4.0 SOHC / 4.0 OHV Tech 2 12-25-2010 10:39 PM
2.3 Idle When Compressor kicks on KingRanger 4-Cylinder Tech 4 04-24-2010 02:34 PM
AC compressor not getting voltage ranger93 General Ford Ranger Discussion 0 06-26-2009 06:49 AM