Anyone one have problems with 3.7 Idle. Seems to be a little ruff like a misfire but

[snsheil96]

Anyone one have problems with 3.7 Idle. Seems to be a little ruff like a misfire but throws no codes.

 

[jeeptorino68]

mine kind of acts the same when warmed up...not sure if it is a problem, my imagination, or just how it is normally...

 

[snsheil96]

Just bought the jeep with a blown motor. It seems to be a little much of a vibration in the car to be normal. Even with the hood open motor has a nice shake to it. When i put the motor in i put on new motor mounts,Plugs,Coils,Crank and cam sensor. Have no check engine light. Seems to run great. Just has a iratating Idle

 

[rockymountain]

Vacuum leak somewhere? Does it lope? If you can see it shake no its not normal.

 

[snsheil96]

vacuum was my first idea since the intake had to come off to do the motor. So i used a smoke machine to smoke it. Only found a leak in the vacuum line that ran back to the gas tank. repaired it but still same

 

[snsheil96]

No lope at all. Rpm gauge on the dash stays normal

 

[rockymountain]

Not sure. Could be lots of things if you swapped in a new motor. Hopefully more of an expert will help out.

 

[snsheil96]

Its driving me nuts. Hopefully it just something im overlooking. Everything i Read online they say the 3.7 have a bad idle. But it just doesnt seem right.