2006 4.0 Squeals in all gears except park and neutral
#1
2006 4.0 Squeals in all gears except park and neutral
I got my transmission rebuilt because I had some fluid changed and they found a lot of shavings and chunks (this after I left off 2nd gear and it would buck forward) - I was worried it would blow and I'd get stranded, so i got a rebuild.
Almost immediately when I get back home, I noticed this squeal noise at idle. It only happens in D, R, 2, and 1. P and N make no noise.
Trans shop said "sounds like an idler pulley to me" which is such a lie, but those are so easy to change I did it anyway. Surprise - no difference. Belt is also pretty new too.
I am wondering if this is the torque converter. Truck drives just fine and shifts fine, I've put 1K on it, but....what the hell is making this noise?
#2
RF Veteran
iTrader: (1)
COLD ENGINE
Remove fan belt from crank pulley
Start engine, battery light will stay on thats OK
Put trans in gear and see if it squeals
If so take it back to shop
If not then one of the belt pulleys is making the noise
You can run a COLD ENGINE with no water pump for 2 minutes and 2 minutes ONLY
Remove fan belt from crank pulley
Start engine, battery light will stay on thats OK
Put trans in gear and see if it squeals
If so take it back to shop
If not then one of the belt pulleys is making the noise
You can run a COLD ENGINE with no water pump for 2 minutes and 2 minutes ONLY
#3
COLD ENGINE
Remove fan belt from crank pulley
Start engine, battery light will stay on thats OK
Put trans in gear and see if it squeals
If so take it back to shop
If not then one of the belt pulleys is making the noise
You can run a COLD ENGINE with no water pump for 2 minutes and 2 minutes ONLY
Remove fan belt from crank pulley
Start engine, battery light will stay on thats OK
Put trans in gear and see if it squeals
If so take it back to shop
If not then one of the belt pulleys is making the noise
You can run a COLD ENGINE with no water pump for 2 minutes and 2 minutes ONLY
#4
This noise only happens when the engine is warmed up - it is OK to run the engine without a belt for even a VERY short time? (I'm talking 10-15 seconds)
#5
RF Veteran
iTrader: (1)
#6
Getting under the truck while in Drive (chocked the wheels), the sound is coming from under the truck vs. the engine bay so I feel like this would absolutely be the transmission.
#7
RF Veteran
iTrader: (1)
#8
Is this the same noise: www.youtube.com/watch?v=nh4AYvVSvjA
#9
RF Veteran
iTrader: (1)
#10
Bad news - truck shifts fine, but during the teardown at the shop, it wasn't the torque converter, it was the EPC solenoid making that noise.
Truck is back together and drives fine, but that's super frustrating to have to a valve body that is supposed to fix one problem now make a constant noise at idle and D and R.
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jordanwilson373
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06-06-2018 04:39 AM