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Aug 11, 2008 | 01:04 PM

red7.3F350

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ticking

I have developed a ticking sound around 1300 to 1600 rpms. doesn't do it at idle, no blue or white smoke. Did a buzz test, and ran for codes. Nothing came up. Any ideas of what this could be?

Aug 11, 2008 | 01:57 PM

clintbonnie

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From: Ardenvoir, Washington

My guess would be #8 injector click.. Mine does it specially when not using biodiesel.. And a Big welcome to the forum..

Aug 11, 2008 | 01:57 PM

John311t

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what year is your truck?

Aug 11, 2008 | 06:26 PM

red7.3F350

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it is a 1999.5

Aug 11, 2008 | 06:27 PM

red7.3F350

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168000 miles

Aug 11, 2008 | 06:37 PM

ron's power stroke

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From: White Mnt's,New Hampshire

you mean an exhaust tick sound??? if so..check the tube.(looks like a brake line) on the passanger side exhuast manifold..near the front of the truck....this tube goes up to the EBPS (exhaust back pressure sensor)..it will some times get pin holes in it and start to tick.....

Aug 11, 2008 | 07:46 PM

greedy737

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From: Lenhartsville PA

Welcome to FTE!! Could also be an uppipe leak. Look for black soot at the dounuts!

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Aug 12, 2008 | 04:38 PM

red7.3F350

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yea I checked the whole exhaust for leaks, and I can't find any signs. I only hear it when I'm under load. it doesn't do it when I am parked. if i floor it i can't hear it but if i accelerate normally then it is most noticeable. is this an injector going? wouldn't the buzz test show that? could this possibly be a clutch issue if the sound isn't there while under no load?

Aug 12, 2008 | 04:39 PM

#10

red7.3F350

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its definately on the drivers side and it sounds like it is coming from behind the dash/firewall.

Aug 12, 2008 | 06:54 PM

#11

PaysonPSD

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From: Payson, AZ

Are you able to do a CCT, Cylinder Contribution Test?

Aug 12, 2008 | 06:56 PM

#12

greedy737

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From: Lenhartsville PA

did you check the two exaust pipes coming up behind the motor to the turbo for leaks? there called the uppipes..

Aug 12, 2008 | 07:10 PM

#13

AustinS

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From: Littleton, Colorado

Quote:

Originally Posted by red7.3F350

its definately on the drivers side and it sounds like it is coming from behind the dash/firewall.

I'll bet the sound you hear is the #8 injector. This doesn't mean it's failing. Mine makes more noise at times than others and has for the last five years and it still runs just fine.

It is a different injector than the other seven, so it's bound to sound differently in operation.

Austin