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10-16-2008, 12:38 PM
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#1 |
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Registered User
Join Date: Jan 2007
Location: Vancouver Island, British columbia
Posts: 138
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4.3 making noises
I have a 99 Jimmy with a 4.3l in it. When the motor is cold and I start it there is a ticking noise. It stops after about a minute, and is not there at all when I start the motor after it is already warmed up. The truck has 260,000km on it. I'm planning on keeping it for a while longer as it is in really good shape overall. Anybody have an idea what this could be and if it is fixable?
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10-16-2008, 04:13 PM
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#2 |
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Senior Member
Join Date: Jul 2006
Location: Blountville, Tn.
Posts: 3,904
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Re: 4.3 making noises
Its sounds like to me just a lifter taking its time pumping up after it sat. You can fix it but it will involve a good teardown on the motor. Try adding some oil treatment such as STP to your oil and see if that helps.Or change it with the high mileage oil. With that many miles on the motor, its aloud to make some noises.
 I wouldn't worry about it. But thats just me.
__________________
*We could learn a lot from crayons... Some are sharp; some are pretty;and some are dull. Some have weird names; and all are different colours;but they all have to live in the same box. * You may be only one person in the world, But you may also be the world to one person. * Some mistakes are too much fun to only make once. Two rules in life. 1. Never sweat the small stuff! 2. Everything is small stuff! |
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10-16-2008, 06:03 PM
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#3 | |
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Registered User
Join Date: Dec 2003
Location: here
Posts: 5,789
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Re: 4.3 making noises
Quote:
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10-16-2008, 09:01 PM
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#4 |
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blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: 4.3 making noises
I'm thinking more along the lines of wrist pin or piston slap. drive it.
BTW, if it does end up having a scrap iron fit I just happen to have a spare 80K mile one sitting in the shop. |
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10-16-2008, 09:09 PM
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#5 |
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Trucks N Tranzams
Join Date: Dec 2002
Location: North Las Vegas, Nevada
Posts: 816
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Re: 4.3 making noises
Or put an LS1/6 speed in it. Thats what I'll do if mine ever has a scrap iron fit.
__________________
 Don'68 Chevy LB 383 TH400/GV/373 posi '56 Chevy 4WD SWB '64 Chevy short stepside '79 Trans Am 455/TH2004R/12blt/4whldisc 95 Kia (Wifes car) 2002 S-10 extended cab pickup "God punishes small sins immediately" |
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