Author Archives: Bob Thomas

About Bob Thomas

Bob Thomas is an automotive mechanic with 30 plus years experience. He is a contributor to several publications and has written many articles on automotive maintenance and repairs. He also has created many auto repair videos on YouTube.

What is a Jeep 4.0 Inline-Six Firing Order?

The Jeep 4.0 inline-six is an iconic engine and one of the most popular motors ever produced. It was discontinued in 2006 but is still wildly used by many Jeep owners and continues to be a great motor with many enthusiasts. It was originally developed and built in the 1980s, expanding upon the long history… Read More »

Causes and Fixes P0053 OBDII Engine Code

If you have a vehicle with a P0053 error code, the onboard computer (ECM) is seeing a problem with an oxygen sensor. The official definition is “Heated O2 Sensor (HO2S) Heater Resistance (Bank 1, Sensor 1).” There are usually four oxygen sensors on a V6 or V8 engine and two on a four-cylinder engine. What… Read More »

3 Causes and Fixes P0121 Code Chevy Silverado

A Chevy P0121 Code Silverado is a “Throttle Position (TP) Sensor 1 Performance.” Common causes include a faulty throttle body, bad throttle position sensor, and wiring. Symptoms include the engine running badly, rapid RPM changes, and possibly limp mode. If you have a Chevy Silverado and get a P0121 error code, there is a problem… Read More »

5 Causes and Fixes Ford P0022 Error Code

A Ford P0022 error code is an “Intake Camshaft Position Timing – Over-Retarded (Bank 2).” Common causes include dirty engine oils, bad or clogged VCT solenoid, and slipped timing chain Symptoms can vary but include low oil pressure, limo modem, engine pinging, and more. If you have a Ford vehicle with a P0022 OBDII Code… Read More »

Causes and Fixes P0118 Code Honda

If you have a Honda with a P0118 error code, there is a problem with a coolant heat sensor. The official definition is an “Engine Coolant Temperature Sensor 1 Circuit High.” There can be 2-4 engine coolant temperature sensors (ECT) in a Honda, depending on the year and model. What is a P0118 Code Honda… Read More »

How to Test and Replace an Engine Temperature Sensor

Symptoms of a Bad Engine Coolant Temperature Sensor How a Temperature Sensor Works Coolant Temperature Sensor Location How Much Does it Cost for a Coolant Temperature Sensor? Common Engine Coolant Temperature Sensor OBDII Codes How To Test a Coolant Temperature Sensor Replacing a Coolant Temperature Sensor Like all sensors on an engine, an engine coolant… Read More »