Rick's Free Auto Repair Advice

Posts Tagged: Check Engine Light

Check engine light on? — Is it serious?

A check engine light on means there’s a problem. As long as it isn’t flashing and it’s driving ok it’s probably not an expensive fix What does a check engine light mean? Vehicle computers are very sophisticated and can routinely test each system in the vehicle, fuel, spark, exhaust, emissions, etc. The emissions laws state what minimum standards the vehicle must meet, so when the vehicle computer tests emissions and the results come up outside of spec, it will set a check engine light and store a trouble code. A … Read More

Check engine and ABS light on GM vehicles — Service Bulletin Fix

Got a check engine and ABS light on a GM vehicle? Here’s the fix GM has issued a technical service bulletin (TSB) #06-06-04-049B for check engine and ABS light on, along with a no start, stall, and various other electrical problems on the vehicles listed below. GM has found that a chaffed wiring harness can cause all these problems. Even though they’ve making cars for over a century, that doesn’t seem to have taught them anything about how to route a wiring harness. In this case, the wiring harness rubs … 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


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