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2005 trailblazer makes a high pitched noise harder i push the gas higher the noise heard it could be the alternator because its a high output type sound right?
Wiki User
∙ 12y ago
Just had the same issue.....it is quite possible your water pump. try this look at the fan located near the belts. If it moves when you tug it, then it is definetly your water pump.But before you dive in to replace the water pump or the alternator, first remove the serpentine belt idler located under the alternator. Find an auto parts store that carries bearings (About $13.00 to $15.00) and have them press a new bearing into the idler housing. Re-install and test engine for high-pitched noise. If noise is gone, you just saved yourself a lot of time and money. A replacement alternator would have cost about $200.00 from a parts store and maybe $300.00 from a dealer. If you try to buy a replacement bearing from a dealer they will offer you a complete idler assembly for around $50.00 and you have to remove the alternator to replace the idler assembly. Of course if the noise doesn't go away, then you are out only $13.00 and have to replace the water pump or alternator anyway. Personally, I would replace the alternator next because it's easier to get to than the water pump. If that doesn't get rid of the noise, you can take it back and get the water pump. I just went through this with my 05 TB. The idler was the problem.
Wiki User
∙ 12y ago
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How do you replace the alternator in 94 intrepid?
Gee, which engine do you have? a 3.3L the alternator is on the top, and totally easy to get to. a 3.5 is lower and harder to get to... What are you talking about? The 3.5L is very easy to get to--Its near the top as well.
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