Exhaust sound changes at idle????

Black Power Stroke · #1 (**permalink**) 10-25-2010, 05:49 PM

Not sure what the deal is but the truck has always done this at idle. It will just sound normal and then it will sound like a hairdryer or something kicks on for about 15-20 seconds and then it will quit. Is this normal? What is it?

clutchdabomb22 · #2 (**permalink**) 10-25-2010, 05:54 PM

yuppp normal, my dmax does it, its 3 in straight piped, if you go to a 5" like i have on my powerstroke you hear it a little less , but yeah perfectly normal!

**rlpzzz** · #3 (**permalink**) 10-25-2010, 06:01 PM

It's your EGR valve cycling.

Black Power Stroke · #4 (**permalink**) 10-25-2010, 06:07 PM

Thanks for the replies. Thought it was probably EGR cycling just wasn't sure.

Squirly · #5 (**permalink**) 10-26-2010, 08:04 PM

nice I was wondering what that was!!! Thanks

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Powerstroke.org Advertisement