2004 Chevrolet Silverado 2500HD , 6.0 Vin U Misfire

Vehicle came in the shop, with the SES light on and an obvious misfire. Previous shops had replaced plugs and wires, removed cats, replaced both bank 2 oxygen sensors, the ECM and had swapped positions of coils and injectors for cylinder #6. I scanned vehicle and found a misfire present on #6 cylinder on a … Continue reading “2004 Chevrolet Silverado 2500HD , 6.0 Vin U Misfire”

2000 Cadillac Deville, Fuel Gauge Reads Full All Of The Time

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”

1999 Pontiac Montana Fuel Pump Fuse Blows

Customer stated that he has installed two fuel pump assemblies within a few days and fuel pump fuse continues to blow. Removed the fuel pump fuse and relay and replaced with fused jumper wires that have manual reset circuit breakers install. This allowed testing without having to constantly having to cycle the key for fuel … Continue reading “1999 Pontiac Montana Fuel Pump Fuse Blows”

1999 Buick LeSabre, A/C Controls Blinks, Ticking Under Dash

This car came in with the complaint of the a/c control head was blinking and there was a ticking sound under the dash. Also the customer stated that the headlights go out when this happens. Luckily the symptoms were present along with others. The oil gauge would jump with the ticking sound and I noted … Continue reading “1999 Buick LeSabre, A/C Controls Blinks, Ticking Under Dash”

2001 Ford Ranger, Fuse #2 Blows

2001 Ford Ranger with automatic transmission came in with fuse #2 in the interior fuse block blowing for the customer daily. Customers main complaint was that the a/c would stop blowing when the fuse would blow. Inserted fused jumper wire that uses ATO/ATC fuses. Cheaper fuses to blow and can access wiring to do amp … Continue reading “2001 Ford Ranger, Fuse #2 Blows”

2000 Cadillac Deville, 4.6L, Surging Idle and Stalls

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”

2001 Chevrolet Cavalier Headlights Inop

2001 Chevrolet Cavalier came in the shop with no headlights. The service vehicle light is on and the DRL relay clicks several times when placed in gear with engine running. Checked power and ground at headlight bulb (required assembly removal). No switching grounds from dimmer switch. Located badly damaged harness connector under the battery tray. … Continue reading “2001 Chevrolet Cavalier Headlights Inop”