Ticking sound

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Dec 23, 2007 | 02:08 PM

lazy ike

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Ticking sound

I was driving the other day and the engine started to tick(90 f-250 7.3). It sounded like the fan was hitting something from inside the cab. When I checked under the hood, the sound appears to be emminating from passenger side front. I am now getting smoke under load and rough running all around. I threw a new fuel pump in with no change. Any ideas where to look next? Thanks

Dec 23, 2007 | 05:00 PM

KJLYPW

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From: Powell River B.C.

Injector noise-missfire. Are you using a fuel lubricant additive. If not give it a double or tripple dose, see if things improve. If not you are likely looking at replacing injectors.

Dec 23, 2007 | 06:19 PM

lazy ike

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I do run a lubricant occasionaly so I'll try that first thanks.

Dec 23, 2007 | 06:28 PM

sampatton

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might be something valve train related also

Dec 23, 2007 | 06:32 PM

ajjs

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I've been reading about the HIMAC pcv jar and was wondering what is the thinking on its performance now. I have a 1987 I6 f150 4x4 four speed and a 1981 Jeep J-10 258 I6.

Jan 6, 2008 | 10:24 AM

lazy ike

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Well, a couple of new injectors have not solved the problem so any ideas what I can or should do to check the valve train? Thanks

Jan 6, 2008 | 10:51 AM

PLC7.3

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From: Manitoba

How many miles on the engine....... could be a rocker assy is worn out. Remove the valve cover and check for sloppy rockers.......bent or broken parts especially valve springs. When the cover is off post back with what you see......

Are you getting any loud wooof wooof in the intake or chuffing at the exhaust.

Last edited by PLC7.3; Jan 6, 2008 at 10:54 AM.

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Jan 6, 2008 | 07:32 PM

Jake S

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From: Twin Cities, MN

I have a bad lifter where the needles came out of the roller. Was quiet, coming and going, then louder. Now sounds like a rod knock. I would suspect valvetrain.

Jan 6, 2008 | 08:11 PM

#10

PLC7.3

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From: Manitoba

Jake I think your roller lifter is Fubar and taking care of the cam for you....... ouch.

Jan 6, 2008 | 08:29 PM

#11

Jake S

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From: Twin Cities, MN

Good thing I have spare motor. Going to take turbo off tomorrow and see it first hand. When the pushrod suctions to the lifter I can pull the lifter up and hear funny sounds.

Jan 12, 2008 | 09:32 AM

#12

lazy ike

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Well the valve cover came off to reveal a spring sitting sideways and a valve guide in a couple of pieces. I don't expect I am going to be able to replace the guide easily?