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Old 03-17-2014, 01:58 PM   #1
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Engine whine

Hey guys,

I need some help, I have a whine that drives me crazy.
First off, some history.
I'm a mechanic and bought a 95 Wrangler 2.5 with a blown engine (read rod n*2 went through the block and oil pan). I got a used 95 bock of cl and swapped it in. It ran great, no noise whatsoever. I drove 10 miles to the garage, did a full tune up (filters, plugs, water pump, tensioner, thermostat, distri cap and rotor and flush everything). I also cleaned the throttle body.
I drove the car that night for 50 miles and it was great, notice the tranny needs new synchro for first and second and fifth gear is gone.
The next day, I drove 15 miles and all the sudden, the whine came out.

It sounds like a whiny rear end but follows the engine rpm. It goes away if I press the clutch, but doesn't accentuate with speed, only rpm. I have constant oil pressure (50 idle, 65 running).
I have a light ticking(seems to be a lifter). I try a stethoscope but noise is really hard the locate.
I have a very light ticking under the valve cover, and it seems another one at the junction of the block/oil pan (thinking oil pump bearing).
I would love if it is the tranny but it doesn't seems to be.
I can't go to the garage this week to put it on the lift. If anyone has had the same issue, I would love to know what caused it.

Thanks

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Old 03-17-2014, 02:14 PM   #2
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If the noise goes away when you depress the clutch suspect a bad throw out bearing.

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Old 03-17-2014, 02:29 PM   #3
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it does go away if I press the clutch wihle I'm driving, I don't hear it when car is stopped.
It makes me think about a bad input bearing from the tranny but I need to be sure.
I'm frustrated by it and can't really think straight anymore.
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Old 03-17-2014, 03:10 PM   #4
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The input shaft would be turning anytime the clutch pedal is released, if it is making the noise only when the vehicle is moving I suspect the trouble is deeper in the tranny or transfer case.
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Old 03-17-2014, 03:30 PM   #5
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I thought about the transfer case but it can't, as I soon as you shift, the noise goes away and builds up with the rpm. Engine is always vibrating, got to check the harmonic balancer and injectors.
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