Slight Roughness

[NorCalSam]

We ran the Rubicon this weekend my write-up is in the trails section we had a good time. There are no signs of either drive line hitting rocks at all even the muffler only has a small dent witch to me is simply amazing. But there is a slight roughness about it when you depress the pedal, it does not have to be moving. What do you think is the cause?

 

[desertdude]

cap and rotor ? sometimes these can get toasted from low range high rpms

 

[NorCalSam]

cap and rotor ? sometimes these can get toasted from low range high rpms

That makes me feel better

If that is all it is.....it was time for a tune-up anyway.
Thanks desertdude

Sam

 

[jfz80]

dunno but maybe the exhaust flange gasket? i had a similar experience just barely snagging the muffler and guess it separated at the flange enough for a small leak but resulted in a little roughness wether moving or not. again a cheap fix, good luck>

 

[archie]

I don't know if the rubicon has any water crossings, but some people have had some idle roughness after washing down the engine. It could be fluid or condensation on connectors. Just other possibilities to consider.

 

[NorCalDoug]

I have some rough idle now too...


and a nice bright and shiny CEL (as of 8:30AM today)
time to get a code reader and pull that puppy...

 

[NorCalSam]

I don't know if the rubicon has any water crossings, but some people have had some idle roughness after washing down the engine. It could be fluid or condensation on connectors. Just other possibilities to consider.

Yes but its not very deep this time of year and I have been in much much deeper water then that with no probs before. Thanks for the input.

 

[NorCalSam]

I have some rough idle now too...


and a nice bright and shiny CEL (as of 8:30AM today)
time to get a code reader and pull that puppy...

Yes a code reader would be nice all be at your house more often.

Sam

 

[Little Boss]

roughness after rubicon

I think the sound is different but very similar to the sound that the exhaust/cats make when they rub on the hannah slider cat skid plate. It seems when we wheel and the cat skid plates are used, a rough sound comes from the floor area of the truck. It resonates across the floor and makes an overall roughness. Noticed a lot when starting the vehicle or idiling. The current sound is not exatly the same, but rings a similar tune to me. The sliders flex, IE) on the drivers side the slider in the front is moved and is now touching the front of the rocker panel. This is just an observation of mine that when we wheel hard, we get noise from the cat area. I will say how awesome the Hannah sliders are, and a big thanks to Ken Hannah for making such a good product. It took our truck with a 2.5 inch lift through the rubicon.

Teresa