Question about 2000 Chevrolet Blazer

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My blazer is making a ticking noise. I have changed the belt,pulley, and recently the water pump. It now only makes the noise when I give it gas.What could be the problem?

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Can be anything if coming from upper engine possible problem in head[s] valve tick if truck overheated and oil wasnt changed also may have sludge in engine causing limited oiling of valves,lifters rockers or a valve needs adjusting rocker loose can also be from the parts u replaced need to listen to where noise is coming from

Posted on Feb 08, 2010

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sounds to me from the brief description like you have either a water pump rattling, or a timing chain coming slack. Is the noise coming from the alternator? Never grease pulleys, ever. also the stop squeak spray is bad for your belts. Don't know why they even sell it. If you listen carefully you may be able to pin point the rattle. Is this a tick tick tick, or a rattle rattle rattle? Does sound like a water pump rattle or timing chain slap though. Hope this helps

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Bearings in Alternator, water pump, power steering pump or even a squeal from Vacuum line, EGR diaphram or similar. Check power steering fluid level.



Now when you replaced the tensioner, did you notice more pulleys that were just "there" and not connected to anything? These are idler pulleys and are helpful in routing the belt. They have bearings too!

Pleae rate my info.

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I have a 99 Hyundai Elantra and almost every time I turn the car on, it makes this awful squealing noise. The noise sounds to be coming from somewhere in the engine and is really bad when I have my wheel...


hi, the first thing i would have said the fault was was going to be a fan belt/ alternater belt if this is to loose or to tight then this can give you the noise you are hearing, one way of finding out if its a belt making the noise is to go out and get a spray like wd40 and then spray this on the belt then if the noise goes away you then know that its that belt causing you the problem.

If the belts have not been replaced recently then this could be the cause of your problem, spray the belt with a spray or even soapy water then give you car a try if your using soapy water make sure you get the whole belt wet then try the car if the noise is then gone you know the belt is at fault.

If you have power steering then low power steering fluid can cause the power steering pump to squeek so check the level and fill it up to the highest mark then start the car and turn the wheel fully left then fully right then back to the middle then check the level again.
Low steering fluid can cause the noise you hear.

If after doing this its not the belt making the noise and neither the power steering pump then the only thing left that could cause the noise you are having is a dry bearing on one of the pulleys now this could be the alternater pulley or power steering pulley basically any pulley that the belt is running on could be causing you the noise you hear.
To stop the noise you need to buy a spray oil or spray lube then give these pulleys a good spray all around where the bearing is in the middle if the bearing gets to dry it can sieze and cause you loads of problems so go and buy a spray lube and give all of the pulleys a good spray at the front and the back try and get it in towards where the bearing is in the middle this should then stop the noise that you are hearing.

you can spray wd40 on the pulleys but remember this isnt a oil or lube it will just stop the noise for a couple of minutes so you could tell witch pulley is causing you the problem your better of buying a proper spray lube and give all the pulleys a spray where the bearing is in the middle this should then solve any noises you hear.

Make sure you check the engine oil level to rule out the noise coming from the inner workings of the engine ok


Let me know how you get on or if you need further assistance ok.

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i recently experienced the same issue. it can be your tensioner pulley or your water pump see the belts are connected to the pulleys and sometimes get worn out and need to be replaced. especially on a older car see a mecanic

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