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Low Compression Cylinder

  

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HI Scotty

I have a 2017 Dodge Promaster 1500 3.6L with 100k miles.  The #6 cylinder reads 50 and the others are about 150.

The mechanic said I need to replace the engine. Did not diagnose why specifically.

Is it worth the labor trouble shooting this?

Avoiding the situation I have been driving with the check engine light on about 60 percent of the time for 8 months now. (I still have a catalytic converter BTW) Driving it, I can not tell that there is anything wrong except my fuel mileage is down about 2 MPG. I did get bigger tires though from 225 to 245's.

I have been doing online research for the engine that didn't have a million complaints which is rare.

It came down to Powersource and Sharper Edge for the remanufactured engine for now. Jasper was loaded with complaints.

Any advice on this would be greatly appreciated.

 

Sincerely,

Eric

 


2 Answers
2

Did not diagnose why specifically.

failed cylinder compression test is a pretty conclusive diagnosis

 

Avoiding the situation I have been driving with the check engine light on about 60 percent of the time for 8 months now.

not a good idea

 

I did get bigger tires though from 225 to 245's.

not a good idea

my fuel mileage is down about 2 MPG.

you have oversize tires.

 

 

Have you checked to find out the market value of your vehicle versus the cost of engine replacement?


1

Did the "mechanic" check to see if the #6 cylinder valves were stuck open.  Did he perform a dry and wet compression test?  I would at least get a second opinion.  Check out Powertrain Products for rebuilt engines with a good warranty if that's the way you go.


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