This 1985 Cadillac Fleetwood Brougham came in with the complaint that the air conditioning compressor would not turn on and the weather is starting to heat up. I checked the refrigerant level and found it low but not low enough to cause the compressor to not engage. I have been down this road many times … Continue reading “1985 Cadillac Fleetwood Brougham, A/C Compressor Does Not Come On”
This customers car has been in my life for way too many years and the last few times I have had the car in for repairs I have noticed and commented to the customer about a very noisy speedometer cable. The customer finally said she has also had enough of the noise and now I … Continue reading “Replacing a Noisy Speedometer Cable On a 1985 Cadillac Fleetwood Brougham”
This 1989 Cadillac Deville came in with the park / tail lights staying on. This is a fairly common problem on 1980’s and early 1990’s Cadillacs with Twilight Sentinel headlight systems. The Twilight sentinel module is located on the rear of the dash panel behind the headlight switch. The following picture is taken from the … Continue reading “1989 Cadillac Deville Park / Tail Lights Stay On”
This was not a particularly difficult problem but I thought it was interesting. Engine would die out on acceleration and felt like it was running out of fuel. Customer said it happened all of a sudden. Checked fuel pressure at service port located at rear of throttle body. Fuel pressure was at 5 – 6 … Continue reading “1985 Cadillac Fleetwood Brougham Low Fuel Pressure”
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”