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Old 01-15-2016, 09:41 AM   #1 (permalink)
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I am serious. And don't call me Shirley.

We had a car come in this morning with an odd squeaking noise. Brakes? Shocks? No, muffler bearings. Yep, it's a real part.

The SRT performance exhaust systems use two electronic active exhaust valves located underneath the rear cradle, between the mufflers and resonators.

The electronic exhaust valves are actuated by the Powertrain Control Module (PCM) and have been calibrated to refine the tailpipe and cabin exhaust noise while mitigating exhaust drone.

The electronic active exhaust valves are comprised of two elements: The electronic actuator and the mechanical valve.

Each electronic actuator (3) has a transmission spring (1) and single wire harness connection (2) which connects to the vehicle harness above the rear cradle..

The electronic actuator can be serviced separately from the exhaust system.

Each mechanical valve is welded into the exhaust pipe and must be serviced with the exhaust assembly.
The actuator sounds like a thermostat in your house clicking on, and the valve itself was squeaking. When it comes in I know where I'm going to put it: out back with the diesel exhaust fluid.


Originally Posted by sheepdog44 View Post
Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

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Old 01-15-2016, 09:51 AM   #2 (permalink)
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Surely, it sounds like a Fiat exhaust "purr-to-growl" switch valve (wink,wink)!
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Old 01-15-2016, 10:19 AM   #3 (permalink)
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Haha, got a good laugh out of that one.
Current project: A better alternator delete
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Old 01-15-2016, 10:49 AM   #4 (permalink)
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I'm waiting for them to actually come out with blinker fluid...
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Old 01-15-2016, 11:38 AM   #5 (permalink)
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Originally Posted by t vago View Post
I'm waiting for them to actually come out with blinker fluid...
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