Question about 1996 GMC Jimmy

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Loud Ticking/knocking Noise From motor; What is it?????

I have a loud ticking/knocking noise coming from my engine somewhear. it sound like it's in the head, but im not too sure, it might even be the belt tentioner pully.It starts when i start my engine, then when warm, it stops ( But not all the time it stops ). It's been happening since it got really cold ( I live in Michigan). Any answers or possible answers would be helpful...thanks.

Motor Details; 4.3l v6 vortec

Truck: 96 GMC Jimmy 4x4

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  • Lummsebay Jan 21, 2009

    what's the names of some oil additives i could use? and would this be a costly fix?

  • Anonymous Mar 13, 2014

    A loud knocking noise bcomming from engine seems to be from timing belt area started mild then got worse

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Could be yur water pump going do you leak anti freeze or oil? also if a older model could be ot of timeing check your distributor cap and see if its loose
good luck

Posted on Sep 11, 2013

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You have a hydraylic lifter bleeding down,they make some good oil additives that should help.

Posted on Jan 21, 2009

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1 Answer

Tapping noise in engine


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Dec 02, 2015 | Cars & Trucks

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Can lifters be replaced


Oh yea, lifters can be replaced , best if you replace cam an lifters together ! Loud knocking is not usually associated with lifters , they usually make a ticking noise ! Knocking noise is most usually in the bottom of the motor , main or rod bearings . most of the time rod bearings !

Jan 27, 2015 | 1996 GMC Jimmy

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Noise startup


Have your valve lash adjusted. Overhead cams need the lash done every 25-30K otherwise after some time they make a loud ticking sound. If the motor makes a "Knocking" sound, it may be a lower end noise, and there is no adjustment for that.

Jun 17, 2013 | Hyundai Santa Fe Cars & Trucks

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Loud ticking noise coming from motor


This is probably tappet noise from the top end of the engine. However you should have it looked at quickly as these engines had a severe problem with oil sludging, even when recommended services were done.
This caused all sorts of problems, so see if you can get it fixed before the engine develops something terminal.
http://www.enginebuildermag.com/Article/66958/sludgy_saab_may_rattle_your_chain.aspx

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I took the car for repair and they fixed my oil pan valve cover gasket and the oil pan gasket. they put the knock sensor wire direct to the knock sensor since they didnt have a connector. i drove off and...


the knock sensor changes the timing of the motor when it senses knock ,it sounds like the wire may have come off ,it sounds as if when you press the gas the timing should advance and it sounds as if its not advancing thats why you are hearing a clattering noise on accelerating.if you keep driving it like that you can do engine damage

Mar 03, 2011 | Toyota Tercel Cars & Trucks

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I have a 2003 Chevy Impala. I ran my car with no oil and now I'm hearing a loud ticking/knocking noise coming from under my valve cover. I added 2 bottles of oil after finding out that I didnt have any...


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most probably you have to let the engine be rebuilt by a mechanic
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A loud ticking noise?


No I would not chase to the pistons, these vehicle were very comon in creating HLA noise hydraulic lash adjusting valves, meaning the valves pump up with oil as the oil gets thinner they dont pump up as fast and create a very loud ticking noise, I would not express a great concern over simplicity, dodge was famous for this, they really were.

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Is it a ticking or knocking noise? or does it sound like something is leaking could be a bad manifold gasket which would be better than a ticking or knocking.

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My 97 excel has a rather loud ticking noise coming from the engine does anyone know what it is and how to fix it?


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Greg
p.s. Please don't hesitate to post back regarding this issue or any other questions!

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