This 2006 Buick Lucerne came in with the complaint that the engine would run hot sometimes. The cooling fans had been replaced with used parts and the coolant reservoir had also been replaced. The customer had stated that someone told them that the oxygen sensor could be causing the problem. I told him that I … Continue reading “2006 Buick Lucerne-Runs Hot”
This 2003 Ford Focus came in with the complaint that the car was running hot. It has a 2.0 liter engine and is a non SVT model. Although similar to later model vehicles with the same set up, this year is unique in it’s wiring harness design. After asking multiple questions of the owner and … Continue reading “2003 Ford Focus, Runs Hot, Cooling Fans Inop, Part 1”
Welcome to part 2 of this repair on the cooling fan system on a 2003 Ford Focus. To see part 1 please click here. I consulted the wiring diagrams further and found that there was a fan resistor located in the fan housing. After unplugging the connector this is what I found. One terminal was … Continue reading “2003 Ford Focus, Runs Hot, Cooling Fans Inop, Part 2”
This 1994 Chevrolet caprice came in with the complaint that the engine runs hot. I ran the engine while monitoring the temperature with the dash gauge, a Tech 2 scan tool and an infrared heat gun. The coolant gauge was reading hot but with the infrared heat gun it was not. Data stream also confirmed that it … Continue reading “1994 Chevrolet Caprice, Runs Hot”