I bought my first TJ about a month ago. A super clean 2005 sport with 83k miles a 4.0 engine and 6 speed transmission. Almost immediately I noticed a ticking noise from inside the cab that was very consistent and varied with RPM. It doesn’t tick at idle, but starts after about 1500 rpm, in neutral and in gear, with or without the clutch pushed. I thought for sure exhaust leak and did a shop vac and soapy water test. Did not find any leaks. I replaced the opda with a new crown unit, which also did not solve it. I brought it back to the dealer I bought it from, who only sells TJ’s, and their mechanic spent 4 days with it but could not locate the noise. It could just be the engine itself, but he mentioned having other TJ’s on the lot and them not being this loud. Any ideas what it could be? Here’s some other things I’ve tried with no change.
Removed the belt and ran the engine.
Changed the spark plugs.
Checked torque on the rockers, and looked for wear.
Bought a new injector and rotated it through all 6 spots.
I’ve used a stethoscope everywhere and can’t seem to find any one location that is obviously making the noise. You cant really hear it under the hood because the air rushing from the fan drowns it out, but when you close the door in the cabin, it is very distinct.
Has anyone else experienced this?
Removed the belt and ran the engine.
Changed the spark plugs.
Checked torque on the rockers, and looked for wear.
Bought a new injector and rotated it through all 6 spots.
I’ve used a stethoscope everywhere and can’t seem to find any one location that is obviously making the noise. You cant really hear it under the hood because the air rushing from the fan drowns it out, but when you close the door in the cabin, it is very distinct.
Has anyone else experienced this?
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