1989 Dodge Dakota with a complaint of no blower operation. I have had lots of experience with these and went straight to the problem. Luckily this year model has the blower resistor in a convenient location. Sometimes they are inside the dash or under the washer reservoir at the cowl area on various Chrysler, Dodge … Continue reading “1989 Dodge Dakota Blower Inop”
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”
Code P0325 stored in 1997 Nissan Maxima. Because the knock sensor is normally at fault I usually test it first. The knock sensor is located under the intake and is accessible on the driver’s side of the car. Locate the knock sensor subharness connector. It is near the dipstick tube, red knob in center of … Continue reading “1997 Nissan Maxima Code P0325 Knock Sensor”
This 1999 Buick Century came in with the customer complaint of Sparking in the driver’s door hinge and now the power windows are inop. Checked the circuit breaker in the passenger side fuse box and it was smoking hot. I decided to disconnect the battery and wait for things to cool down. Common sense would … Continue reading “1999 Buick Century Windows Inop, Circuit Breaker Gets Hot and Sparks From Door Hinge”
After looking at diagrams I found that this Expedition uses vacuum controls to change door positions. I started looking for vacuum line problems under the hood and found the problem behind the battery. You can see the damaged section of the small plastic vacuum line, just slightly lower than center of the following picture. It … Continue reading “1998 Ford Expedition, No Air From Vents, Air Only Flows From Defrost”
2000 Chevrolet C3500 pickup with intermittent battery drain. Installed amp meter in between battery negative post and negative battery cable. A test light can be substituted if needed but not really recommended. Let vehicle sit for about 45 minutes to ensure all modules had gone to sleep and a .85 amp drain remained. Removed all … Continue reading “2000 Chevrolet C3500 Intermitent Battery Drain”
The blower, most of the push buttons and the outside temperature display were inop. Checked basic fuses and all were okay. I did some research and found that there is a problem with the outside air / recirculation motors failing and shutting down the control assembly. The motor is located behind the glove box. Before … Continue reading “1998 Toyota Avalon A/C Inop”
Vehicle cranks normally but within a few seconds the engine starts to stall. If the throttle is pressed the engine will run but it surges severely. With a little research I found that the fuel pump on this vehicle operates at two different speeds and that the speeds are controlled by changing the supply voltage. … Continue reading “1991 Lexus LS400 – Cranks & Stalls”
Vehicle came in with complaint of no blower operation. Removed hush panel on passenger side below the glove box. Located harness connector for blower motor power regulator. Disconnected harness connector. Checked for battery positive on the Red wire, battery negative on the Brown wire and variable positive voltage on the White wire as controlled by … Continue reading “1999 Mercedes SLK230 Blower Inop”
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”