Question about 1996 GMC Jimmy

2 Answers

1996 chevy s10 4.3 vortex lifters knocking at start up but goes away after 10 minutes idling. changed oil and filter oil pump reads 58-60psi at idle and seems to be working.

Posted by on

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 200 Answers

High milage? Try engine cleaner, run for couple hundred miles and then use an additive like Restore. If it's just dirt this may help. Make sure you are using the correct viscosity oil for winter temps. If it's from wear only parts replacement will fix it.

Posted on Feb 07, 2010

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Have a 2001 chevy silverado with 5.3 vortex motor starts knocking in the morning badly sounds like the lifters or lifter so turn motor off the restarts then stops and runs normal

Posted on Mar 19, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Can a blocked oil filter cause a bearing knock on my renault megane 2004 and if so how much to overhaul the motor


oil filters have a built in bypass valve that operate when the filter becomes blocked to allow unfiltered oil to service the engine
Engine /bearing will not be the result of a blocked filter from lack of oil
worn lifters will make a sound if the oil viscosity is not high enough for a worn engine and a simple test here is to do an oil and filter change using a heavy grade oil ( penrite 40w-60)to see if the noise stops
knocking at idle can also be a symptom of worn gudgeon pins(wrist pins / little end ) bushes and this can be tested by increasing the idle rpms slightly to see if the noise goes
incorrect ignition timing ( too far advanced) causes piston slap(knocking) at idle so that can be tested by the installation of a timing light
tests using a mechanical oil gauge that are carried out by an accredited service shop with experience on your make of vehicle will determine if bearing / pump is the problem as far as oil goes , while a wet/dry compression test will determine the engine condition
after these tests are done then you will have information as to what has to be done to fix the problem

Aug 20, 2016 | Renault Cars & Trucks

1 Answer

Bad oil pump knock


ionMr. Hugo. what to what you do have is the viscosity of your engine oil. Most probably is either long mileage used engine oil and due to that oil mud built up inside the engine, in the oil pan and most likely close to the oil pressure pump filter reducing the suction and that is why you do have cold lifter knocking,as the engine oil that time is thicker and when it gets hot become thinner and lifters stopped knocking. My persona advise do flush the old engine oil using ( RESTORE MOTOR CLEANER ) pour it into the engine old oil,start the engine in idle and few times reving it for 40 minutes. Then drain it and renew the engine oil with new and recommended engine oil for your engine,by renewing the oil filter as well. Also in the new engine oil put also (RESTORE FRICTION REDUCER ) additive and run the engine.For next oil change please do it every 5000 km ( 3000 miles)

Apr 04, 2014 | 2002 Hyundai Santa Fe

1 Answer

2001 chevy suburban. I hear a humming noise from the engine. Engine ticks while idle for after a few minutes. Ticking goes away when I accelerate. There is a strong vibration when I accelerate in drive but...


Ticking sounds like a dry lifter, when was the last time you changed the oil and filter? Humming sounds like you need a tire rotation because of uneven tire wear.

Oct 22, 2013 | 2001 Chevrolet Suburban

2 Answers

1999 3.0 ford ranger knocking at idle only


It sounds like a valve or valve lifter issue. First check and make sure the oil livel is where it needs to be. Then, I would let it idle for a few minutes and see if the knock goes away when it warms up a little (still idling). If not, its a bit more in the advanced stages of a valve or valve lifter going bad. Either way, I would change the oil with some high quality synthetic oil and get a filter with a non drainback valve (k&n or Mobil 1 has them for sure). Those attempt to keep the oil in the top half of the motor when you shut it off. I would always let your car run for a minute (longer in winter) before you drive it to get the oil pumped up and circulating.

Aug 11, 2013 | Ford Cars & Trucks

2 Answers

Makes like a ticking or light knocking noise at start up, whether it's hot or cold outside. I usually let the truck idle for a while and it goes away.


Usually a sign of needing an oil change. My Dodge Dakota does the same thing, when I change the oil it goes away. Every couple of oil changes I use kerosene to clean out the gunk, just put kerosene in place of the oil, let the motor run for a minute then drain, replace the oil filter, and fill with oil, then you're good to go.

Mar 30, 2011 | Dodge Ram 1500 Cars & Trucks

2 Answers

I have a knocking noise at idle in my 97 Chevy Lumina...It goes away when I accelerate. What could this be?


after oil change' check oil pressure cold and then hot , then idle, if it goes up when reving it hot, thats good sort of,then if it goes way to low at idle and knocks, check idle speed. Fix it if so, still there , in the old days we would be cheap and put in a high flow oil pump, now I drive the "siht" out of a cheap car to see how long they last! It will supruse you> seen a 97 lumina with 400,000 km. slight knock and still going.

Dec 26, 2009 | 1997 Chevrolet Lumina

3 Answers

Knock or tapping at idle


Firstly, check your engine oil level. If the level is low, the rocker arms in the cylinder heads can tap tap tap... This may be why you're getting an engine light. Check the oil pressure gauge for a reading. If the oil pressure and level is ok, you can run an oil cleaning agent thru your motor with the oil and then do an oil change. Sometimes you can quiet a noisy motor that way.
You could also use a high-mile oil in the motor and see how that works. You can also add an oil additive to help quiet older motors..
hope this helps you.
K

Aug 28, 2009 | 1993 Mazda RX-7

1 Answer

2000 ford expedition When starting after the


dirty or clogged lifters,either use an engine detergent or 1 quart of diesel fuel in the oil,idle only for about 20 minutes,then change the oil and filter and see how it is now.

Jun 06, 2009 | 2000 Ford Expedition

1 Answer

Oil pressure drops to 0 at idle


OOO not good sounds like some of the head gasket got stuck somewhere, or the gauge or sender is bad or got knocked around when repairing the head gasket. I would check that first. If that checks out will need to drop the pan to see if something got stuck in the pickup tube,might as well change the pump while you are there. Or worst case some thing wrong with gasket job impeading oil flow back to bottom of the engine. Was the oil and filter changed ?if so pull out filter and see if an chunks are stuck in it now. And change oil and filter again. Sorry that was out of order I had a long day

Apr 16, 2009 | 1996 Chevrolet Tahoe

Not finding what you are looking for?
1996 GMC Jimmy Logo

857 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...