Question about 1995 GMC Jimmy

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1995 gmc jimmy 4x4 4.3vortec lifter noise

I changed the oil and drove 1,000 miles after that I drive about 30 miles a day to work, if I start the vehicle up 15-20 after getting home from work, it has lifter noise. This lasts for about 30-60 seconds then it slowly gets quieter then it stops.

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  • Anonymous Mar 17, 2014

    My 99 gmc safari van has not been driven much this past year.I drove it the other day,about 10 miles, and when I got home,smoke was coming from underneath the van.I looked under the van and it was oil on the exhaust pipe.I'm thinking something is stopped up,but I'm no mechanic.Any suggestions?
    P.S.I have used Slick 50 in the van for the last several oil changes.Mileage is around 105,000.

  • Anonymous Mar 28, 2014

    a new injector system was part of the rebuild. vehicle drives fine. mpg sucks!



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It sounds like your losing oil pressure you might want to get it checked dont believe the pressure guage on the dash they arent right all the time

Posted on Nov 17, 2008


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Stop noisy engine lifters

You are probably running low on oil unless you have been dogging the engine from red light to red light then you probably stretched the push rods you can also tighten the lifters

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Lifter noise

change oil.put oil treament in when changeing.sounds like lifters are not oil good.treatment will help them.

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My 2000 pontiac sunfire is making a ticking noise from the engine what is it

A ticking noise is normally caused by a lifter. Your car is 11 years old so more than likely is high mileage. There could be some carbon buildup in the lifter or it may just be worn. Purchase a can of Seafoam Motor Treatment at most auto parts stores and walmart. Pour 1.5 ounces of Seafoam for each quart of oil capacity in the crankcase 100 miles before you change your oil & filter. rive that 100 miles, and then change your oil and filter and add Seafoam to the freshly changed oil. Drive the car for 1,000 miles and change the oil & filter again. Repeat the process and then change your oil & filter at 5,000 miles. If you have a sticking liter this will solve the problem. If the lifter is still ticking then it is worn or severely gummed up with carbon. The ticking will do no real harm and is expensive to repair.

Sep 13, 2011 | 1997 Pontiac Sunfire

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My 2006 GMC Envoy Denali seems to be burning oil- the tail pipe is black and the oil level has gone down in the past 1000 miles. I can hear a noise (only when driving, not when in park or idling) that is...

I am having the same problem and the dealer says they checked for an "over-active lifter" - no luck, checked for leaks (there are none!) and checked the plugs, all of which seemed to be darker than they should be. They said the GMC factory rep told them to squirt some clearner in the combustion chamber which will clean out the carbon built-up around the rings. We are to drive the car for 1,000 miles and check to see if the oil level is down. Personally, it sounds like a lot of BS to me!

Oct 13, 2010 | 2006 GMC Envoy Denali

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The lifters are noisy do i need thinner oil like 20w-30

I suppose it would be good to make certain that you have adequate oil in your engine... but as far as the oil viscosity: 20w as number representing the oil at its thinnest, is not 'thinner oil'.
5w-30 would be thinner...
If there's concern of the lifters getting enough lubrication, an alternate route is the oil additive made by "Lucas Oil", it causes the oil to stick to the parts & surfaces... it's pretty decent stuff that has been used as an additive in our 8 cars for years.

Nov 29, 2009 | 1993 Oldsmobile Cutlass Ciera

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2006 Impala, dealer negligence?

Not sure what you mean from a faint knocking. Faint Knocking noise refers to piston slap till the engine warms up and a Tapping noise refers to a noisy lifter, if it's a bad lifter. The noise would get louder as the engine's RPM rises. Most GM owners have the problem of Piston slap first thing in the morning when the engine is cold, it's common and was made that way. The tolerance clearance between the pistons and cylinder walls are quite large since the majority of people do not warm up there car, so as you get on the gas and the pistons expand to the right size and will not wear out the cylinder walls giving the engine a longer life. The side effect to this is piston slap till the piston expands, that's why they say that you just have to warm up the engine for 2 min and then drive. Personal I'm not one to get in and drive, I'll always warm up the engine enough to see the temperature gauge go up. My wife has a Montana with over 150.000 miles and no piston slap after the first oil changed. I found that adding some Lucas engine oil treatment and a can of Engine Restor every second oil change has kept the engine running smooth and quiet, And about 500 miles before the next oil change. I add a bottle of Marvel Mystery Oil, the Mystery oil is thinner and will clean out the internal oil journals to the crank shaft and lifters which would cause the noisy lifter if the oil passage ways are sludge up. The Mystery oil will also clean the Oil Pump Pick Up Screen, ensuring there is not oil restriction in your engine. I have a GMC jimmy with over 350.000 miles and engine still running 100% with this method of service. Good luck and if your due for an oil change soon, add the Marvel Oil and a few days later change the oil and filter and add a can of Engine Restor and some Lucas oil treatment. This should quiet down your engine and add a few more years to it's life. Keep me posted, be glad to answer any more questions you may have.

Nov 13, 2009 | 2005 Chevrolet Impala

1 Answer


have you checked the level of the oil ?


Dec 16, 2008 | 1999 Ford Windstar

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3.2 liter with 177000 miles on it seems to have a tick or clicking sound, at an idle ..problems???

bad lifters or at wort push rods wearing out try putting 10 40 oil instead of 10 30 since it has high mileage if that does not fix it it is either the rods or the lifters simplest thing firt have lifters checked out it may be a loose lifter

Oct 07, 2008 | 1999 Honda Passport

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