Rick's Free Auto Repair Advice

Posts Tagged: Check Engine Light

Turn off the check engine light

How to check trouble codes and turn off the check engine light So you had a check engine light and decided to guess and replace parts without actually reading the trouble code and now you want to know how to turn off the check engine light. Well, dude, if the light is still on, there’s still a trouble code stored in the computer. Rather than throw more parts at the problem, it’s time to invest in a scan tool Pro grade scan tool for DIY. Lists trouble codes and live … Read More

Rattling noise F150

Fix Rattling noise f150 Rattling noise, rough idle, check engine light. If you own a 2004-12 Ford F150 or other truck with 5.4L three-valve V8 engine and experience a rattling noise, rough idle, check engine light, the repair may not be as serious as you thought. Ford has issued a service bulletin alerting dealers to defective variable valve timing solenoids. The bulletin says the rattling noise is usually accompanied by a rough idle and an check engine light. If you check the codes, you might see P0021 P0022 P0340 P0341. … Read More

Check engine light on – Part I

Why is your check engine light on? This is Check engine light on – Part 1 of a Two Part series. Want to skip to Part Two to learn how to diagnose? Just click here. Your check engine light, airbag light, brake light is on and you want to know why. A check engine light turns on because the computer has detected a problem and has set a trouble code in the computer’s memory. There are over 2,000 possible trouble codes related to the engine and transmission alone. There are … Read More

P1762 Dodge Durango

Fix code P1762 Dodge Durango If you own a Dodge Durango and have a P1762 trouble code Gov Press Sen Offset Volts Too Low or high, you may be tempted to throw in a new sensor. Whoa partner! Before you do that, check the downstream oxygen sensor (the one AFTER the catalytic converter). That sensor has a heater in it and if the heater shorts to voltage, it’ll feed back into the Powertrain Control Module and bleed over to the governor pressure circuit. That’ll trick you into thinking the governor … Read More

Check engine light on ABS light on GM vehicles

Fix Check engine light on ABS light on GM vehicles, no start, stalls GM has issued a technical service bulletin (TSB) #06-06-04-049B for check engine light, ABS light on, no start, stalls, and various other electrical problems on the vehicles listed below. 1997-03 Buick Century, Regal 2000-03 Chevrolet Impala, Monte Carlo 1999-01 Pontiac Grand Prix The list the following problems: Anti-Lock Brake System Warning Light illuminated Intermittent MIL/Service Engine Soon indicator illuminated Engine will not start Engine stalls after start up Various electrical system failures Various driveability concerns The cause … Read More

Service 4WD light on Check engine light on

Service 4WD light on Check engine light on Service 4WD light on, can’t shift into 4WD, 4WD shift doesn’t work, transfer case motor doesn’t work on Avalanche, Silverado, Suburban, Tahoe, Ram, Sierra, Yukon, Check engine light on Cardone, a leading manufacturer of rebuilt transfer case motors has issued a service bulletin advising shops of a reason why a brand new Cardone motor may not work properly. In fact, the same problem may be the root cause of the factory transfer case motor not working. Apparently Chevrolet, GMC, and Dodge ground … Read More

No check engine light but codes

My check engine light is on but no codes Many car makers design their computers to alert the driver of a problem by turning on the check engine light and storing a trouble code in the computer’s memory. If a problem occurs but does not meet the software’s threshold for the number of times the problem must occur before lighting the check engine light, the trouble code may be stored as a PENDING CODE. In that case, you could scan the computer and find a code, even though the light … Read More

P1516 P2135 P2138

Fix codes P1516 P2135 P2138 GM has issued a technical service bulletin (TSB) 07-06-04-003 to address a problem with a reduced power and REPEATING trouble codes P1516 P2135 P2138 on the following vehicles: 2005-2006 Chevrolet Cobalt, Cobalt SS, Malibu 2006 Chevrolet Colorado, TrailBlazer 2006 GMC Canyon, Envoy 2006 HUMMER H3 2005-2006 Saturn ION, ION Red Line 2006 Saab 9-7X The codes P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance, P2135 Throttle Position (TP) Sensor 1-2 Correlation, P2138 Accelerator Pedal Position (APP) Sensor 1-2 Correlation, may NOT require replacement. … Read More

P0451 Evaporative Emission Control System

Fix code P0451 Evaporative Emission Control System Pressure Sensor Range/Performance Evaporative emissions systems test for a leak in the fuel tank and associated hoses. To perform the test, the computer pulls a vacuum and checks to see if the vacuum holds. Each car maker uses a different technique to check, but most often it’s some type of fuel tank pressure sensor. This codes relates to a failure in that sensor. It’s either reporting an incorrect value, or is malfunctioning. © 2012 Rick Muscoplat

P0125 Fix

P0125 Fix Insufficient Coolant Temperature For Closed Loop Fuel Control You need to determine whether the engine coolant temperature sensor is telling the truth and the engine really isn’t coming up to operating temperature, or whether the sensor is bad. Many DIYers rush to replace the sensor. And yes, they do go bad. But not nearly as often as the thermostat. So start your diagnostics by checking coolant level. If it’s low, fill it. Then, using an infra-red thermometer, check the temp around the thermostat housing. At operating temperature, it … Read More

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