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If your hear "ticking" and have to use WD40

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Q: How do you determine if the fan clutch is bad on a 2002 Trailblazer?
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How to determine if a spark plug is bad in a 2002 Chevy Trailblazer?

If the car will not start...the spark-plug is bad.


What harm can a bad fan clutch cause to trailblazer?

over heat


What harm can bad fan clutch cause to trailblazer?

The clutch never disengages. This creates excessive labor on the engine and will destroy fuel economy.


High cooling fan speed error on trailblazer?

if fan make a loud noise your fan clutch is bad


Why does a 2002 trailblazer not start?

A 2002 Chevy Trailblazer will not start if the battery is dead or there is no gas. There are many other possibilities likes a defective starter, blown fuse, or bad ignition.


2002 trailblazer when you accelerate it makes bad knocking sound?

IT is your CV Joints which is making this noise.


How do you repair a fan wobble on a 2005 trailblazer?

I think this has an electric fan clutch. If it does then check to make sure it is bolted on good and if that isn't the case then a wobble would indicate a bad fan clutch.


How do I determine if a hydraulic clutch slave cylinder is bad?

In general they leak hydraulic brake fluid when they go bad.


What would cause a 2002 Chevy Trailblazer to misfire?

Bad spark plugs, coils are coil, bad injector. Cam are crankshaft sensor


How do you determine if the clutch slave cylinder you bought is bad?

Usually if there is no indication of clutch wear, such as slippage, yet with the clutch completetly depressed it's hard to engage gears and the clutch engages very quckly


Is there any correlation between a bad fan clutch in an 03 trailblazer ltx and the check engine soon light coming on?

Yes ... get the code checked to verify.


03 Chevy Trailblazer check engine light is on and has a high idle and rpm won't go below 2?

It sounds like your fan clutch is bad.