turbo causing backfiring???
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turbo causing backfiring???
Hi all
My father in law just took in his '03 f550 dump because he blew off a turbo hose.. Ever since they replaced it , when he takes his foot off the accelerator, he gets what he thinks is massive bacfiring. I heard this from a distance and it was a very strange noise not like I would associate with a common backfire. There was also a puff of black from the exhaust. He had it at the dealer today and got it back again with the same racket. Has anyone seen this prob before? Any clue would be appreciated.. Thanks
My father in law just took in his '03 f550 dump because he blew off a turbo hose.. Ever since they replaced it , when he takes his foot off the accelerator, he gets what he thinks is massive bacfiring. I heard this from a distance and it was a very strange noise not like I would associate with a common backfire. There was also a puff of black from the exhaust. He had it at the dealer today and got it back again with the same racket. Has anyone seen this prob before? Any clue would be appreciated.. Thanks
Logistics Pro
Joined: Sep 2006
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From: Airdrie Alberta
watch this video, when he gets to the top of the sand hill and lets off the throttle, is that the noise you hear from father in laws truck?
http://youtube.com/watch?v=919TgDu43qI
http://youtube.com/watch?v=919TgDu43qI
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[QUOTE=rollerstud98]watch this video, when he gets to the top of the sand hill and lets off the throttle, is that the noise you hear from father in laws truck?
http://youtube.com/watch?v=919TgDu43qI[/QUOTE]
Looks like you nailed it rollerstud !! so what the heck is it?? and why didn't it happen before the line blew off?
http://youtube.com/watch?v=919TgDu43qI[/QUOTE]
Looks like you nailed it rollerstud !! so what the heck is it?? and why didn't it happen before the line blew off?
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Originally Posted by bigredtruckmi
Check TSB 04-18-6 at top of this page under full text TSB. I'm wondering if when hose blew off it chaffed the engine wiring harness.
Thanks a bunch
Senior User
Joined: Apr 2002
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From: Peoria, Il
That is a "turbo fart", its normal and I cant believe hes never had it before. Basically boost pressure has no place to go when you let off the throttle so it goes back out the turbo and out the air filter. I wouldnt recomend he sets around and tries to make it do it but mine does it all the time.
Evan
Evan
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Joined: Dec 2003
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From: Arizona
Originally Posted by Aich
Hi all
My father in law just took in his '03 f550 dump because he blew off a turbo hose.. Ever since they replaced it , when he takes his foot off the accelerator, he gets what he thinks is massive bacfiring. I heard this from a distance and it was a very strange noise not like I would associate with a common backfire. There was also a puff of black from the exhaust. He had it at the dealer today and got it back again with the same racket. Has anyone seen this prob before? Any clue would be appreciated.. Thanks
My father in law just took in his '03 f550 dump because he blew off a turbo hose.. Ever since they replaced it , when he takes his foot off the accelerator, he gets what he thinks is massive bacfiring. I heard this from a distance and it was a very strange noise not like I would associate with a common backfire. There was also a puff of black from the exhaust. He had it at the dealer today and got it back again with the same racket. Has anyone seen this prob before? Any clue would be appreciated.. Thanks
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Joined: Apr 2002
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From: Peoria, Il
Originally Posted by blackhat620
If he blew a CAC tube off and now has "turbo fart" it sounds like the turbo vanes are sticking and causing an over boost situation. Have a qualifed 6.0 tech test the VGT for proper operation.
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From: Oregon
I'll third the sticky veins scenario!!! The jeep does it because he is boosting pretty good with a lower engine rpm and then lets off. Under normal driving you will not reach boost levels high enough and engine RPM low enough to Turbo fart unless you have the sticky veins!!! Then again I could be wrong but I had one that had this problem and that is what I observed.
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