This 2004 Chevrolet Tahoe came in with the SES light on and complaints of poor fuel economy and a “strange feel to the engine”. I checked codes and found a code P0178 stored along with misfire and lean codes. P0178 is set if the frequency reading in the fuel composition sensor is below 45 Hz … Continue reading “2004 Chevrolet Tahoe, Code P0178”
This 2005 Suzuki Reno came in with a complaint of a harsh transmission shift and the check engine light was on. I checked codes and there was one stored for the transmission but I cannot remember exactly what it was right now. I think it was P0700, no communication between the TCM and the ECM. … Continue reading “2005 Suzuki Reno, Harsh Transmission Shift”
This 2003 Buick Regal came in with a service engine soon light on and a code P0128 stored. The code means that the engine coolant temperature is below the thermostat regulating temperature. In other words the thermostat is sticking open or opening to soon to satisfy the computer. Thankfully this car has the 3.8 liter … Continue reading “2003 Buick Regal, P0128”
This 2002 Buick Lesabre came in with the complaint that it was running real bad and service engine soon light was on. It ran so bad that the customer had it towed in rather than drive it in. A quick check of the codes and a P0205 and a P0443 were stored. The P0205 was … Continue reading “2002 Buick Lesabre, P0205 & P0443”
This 2004 Chevrolet Impala came in with the complaint that there was no heat on the driver’s side of the car. It could very well have been the reverse, no a/c on the driver side as the problem turned out to be a faulty driver’s side blend air door actuator assembly. There was a code … Continue reading “2004 Chevrolet Impala, No Heat Driver’s Side, Code B0408”
This 1999 Ford F150 came in with the SES light on and a code P0455 stored for a gross evap leak. I checked the obvious things like a loose or missing gas cap, okay. I also inspected the evap hoses and found no problems. I did a little bit of reading and found that I … Continue reading “1999 Ford F150, P0455, Gross Evap Leak”
This 2003 Ford Expedition came in with the complaint that the alternator had been replaced twice and the charge light light indicator was still coming on. The shop that had installed the alternators had called in desperation as their customer was becoming quite upset. They also stated that the light may stay out all day … Continue reading “2003 Ford Expedition, Charge Light On, P0620”
This 1995 Ford F150 pickup came in with the complaint that the idle was very high. The customer stated that the original problem was that the idle was too low and the engine would stall. His neighbor was familiar with Fords and had replaced the IAC valve and now it idles very high. They had … Continue reading “1995 F150 , High Idle – Code 121”
This 1997 Cadillac Deville came in with the complaint that the idle speed would sometimes be okay but most of the time as the engine warmed up it would get progressively higher and higher until the engine would run at about 3000 rpms on its own with no throttle input. The following picture shows the … Continue reading “1997 Cadillac Deville, Erratic / High Idle, Code P0507”
This 1995 Chevrolet Pick up came in with a complaint that the engine would start running poorly. Bucking and jerking intermittently and just generally carrying on is what the customer stated. He also said that he has had several different shops look at the problem, he has spent a lot of money and I am … Continue reading “1995 Chevrolet Pickup, Runs Poorly Sometimes – Code 15”