Intake backfire?????

[Todd Tumbleston]

New heads run great up and down the mountain with the 3500lb camper and towing the wrangler. I do have a kinda backfire from the intake when letting of the accelerator whenunder a load. Any ideas? Does it stock and with my diablosport tow tune. In carson city nevada.... Next stop. Vegas

 

[BamaSixGun]

It's a turbo fart. Completely normal, no worries.

It's air escaping back out of the intake when you let off the go go pedal under a good load or run.

 

[JRJ04]

x2 on that. its typically not good for your turbo, so the way to alleviate it is to let off slowly when under a load instead of abruptly. that should help.

 

[Todd Tumbleston]

Yep I'll have to start doing that. Thanks

 

[Jetpilot1]

intake backfire

Since you just had new heads put on, and it didn't happen before, you might want to check that the valve clearances are correct - might have an intake valve set too tight?