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Crank shaft inner pulley lose on 2003 Exterra 3.3

The inner pulley on the crank is loose and wobbles and makes a noise until the engine warms up and suddenly the pulley runs straight, and the noise stops what? how? why?
How is the inner pulley attached to the crankshaft?

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  • faguirre62 Nov 25, 2008

    Hello, I have a 98 Nissan Pathfinder and apparently we share the same 3.3 liter engine. The main crankshaft pulley on my vehicle is made out of a cast iron metal with a rubber insert. The rubber insert eventually wore out and caused the pulley to wobble. the bolt to secure the pulley to the shaft was not the problem. It was the pulley itself and I went ahead and replaced it for 165.00. Nissan wants about 250.00 dollars for just the pulley. I found a used auto parts store that sold it new in Tampa florida for 100.00. they put it on for 65.00 labor. Nissan was going to charge me about 2.5 hours labor to install the new one. If you want the name of the store in tampa florida it is Allens Used auto parts on 5550 Broadway avenue at 813-620-4242. To see if you have this same problem I have loosen the AC belt and the alternator belt pulleys and grab the main crankshaft pulley and if it wobbles or appears very loose then you need to replace it. Good Luck. Frank.

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