Cadillac Deville was sent to shop from another facility with complaint of a/c cycles off and will not come back on for several minutes and vent temperature goes warm. Checked codes and none were stored in the ECM, DIM or IPM. All data looked good and then the compressor cycled off after running at 2000 … Continue reading “2000 Cadillac Deville Erratic Compressor Operation”
Customer stated that fuel gauge always reads full but the trip computer is keeping track of fuel mileage and he has been using it to monitor fuel level. Checked codes and found codes stored for both fuel level signal voltage high and low. Consulted repair information and found little help. Wiring diagram shows signals from … Continue reading “2000 Cadillac Deville, Fuel Gauge Reads Full All Of The Time”
2000 Cadillac Deville with 4.6L engine was sent to my shop for surging idle. The engine has been changed. The IAC valve, TPS and MAP have been replaced with oem parts. The IAC valve harness connector did have the terminals spread and there was poor contact between harness connector and IAC valve. Replaced the connector … Continue reading “2000 Cadillac Deville, 4.6L, Surging Idle and Stalls”