Question about 1998 Chevrolet K1500

1 Answer

1998 Chevy Silverado K1500, 5.7 , number 5 cylinder keeps fouling the plug with oil. The insulator was broken in half vertically

Posted by Anonymous on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,165 Answers

If the insulator was cracked the plug would have been misfiring, unless it was broken while trying to remove it. If this oil fouling is an ongoing problem, and you have to keep changing the plug, buy a spark plug that is designed to fire when oil fouling is a problem. You may have to order one from a part catalog, such as JC Whitney. This would keep you going until you can get the problem repaired..

Posted on Dec 29, 2010

Testimonial: "Thanks, I am hoping I found the problem last night, the intake gaskets on the lower intake were bad around #5 and #8 by the coolant jacket. "

  • Jackie Miles
    Jackie Miles Dec 29, 2010

    I tried to post this already, but not sure it went thru. Oreilly auto parts has a spark plug nonfouler that the spark plug screws into, then the nonfouler is screwed into the spark plug hole. It sells for $3.99 for a pair of them, part number is 42006.

×

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 expert 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 repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Rear spark plug bank is fouled. The 3 in front are fine. What cold be the problem?


I am assuming it is oil fouled rather than fuel fouled. Oil fouling is usually due to valve stem seal leakage. Most engines have the oil return on the cylinder head at the rear. When the engine is shut off, some oil pools at the rear of the head. If the valve guide seals are worn, then the oil will leak around the stem of the #4 valve and eventually foul the plug. If there are no real issues with the engine other than this one, it is usually best to keep a clean plug or two available and swap out the plug periodically when fouling is detected. Then clean the fouled one and keep for reuse later. If it is happening too often, getting the cylinder head reconditioned is a good idea.

Oct 09, 2015 | 2006 Acura MDX Touring

1 Answer

What causes a 1994 Chevy Silverado 2500 with a


that would be bad coil packs ,try switching coil pack cylinder 3 with 4or 5 and see if miss fire code changes if it does it's the coil pack .or its possible where they plug in at the bottom(there should be a small oval rubber gasket on coil pack to keep out corrosion or possible not making a good connection (loose) ,oil getting in there ,you can use a timing light to narrow it down faster, pull your plugs for those cylinder and inspect for damage or fouling.and lastly check your wires if any brakes or crakes and that they fit on plugs tightly.

Aug 27, 2014 | 1994 Chevrolet Silverado 2500

1 Answer

Fouled spark plugs


Usually one of 2 causes. Most common is a bad valve stem oil seal allowing the oil past the valve stem when the engine is shut off.Second is a broken or bad oil ring on that piston. Be blessed.

Jan 02, 2014 | Ford Cars & Trucks

2 Answers

One plug foul after 200 miles runs ruff


the next time it fouls check the plug when you take it out, if it is covered with oil then you may have a broken ring on the cylinder that is allowing oil to pass through to the combustion chamber and fouling the plug. Or the valves pay be letting oil drain in past the valve seats.

Jul 04, 2012 | Chevrolet Caprice Classic Cars & Trucks

2 Answers

Why is my mitsubishi chariot grands ejecting blue and black smoke


u damaged the valve train or damaged a piston--blue smoke means ur burning oil pull the plugs to determine which cylinder[s] is or are affected the plug would be fouled or have build up on it and do a compression test --possible problems--bent valve--burnt valve-bad valve guide --bad rocker- bad lifter- valve spring broken

Apr 08, 2010 | 1998 Mitsubishi Montero

1 Answer

6 cylinder is miising on my 1998 foed explorer 4.0


Pull the plug and see if it's fouled...should be a light brown color. If it is covered in oil then you have a dead cylinder (oil getting passed the rings). Or the plug may be cracked on the wire-end...seen that before. If the plug is good, and wire is good (check with meter), then could be the distributer cap/rotor. Check that last though...
BD

Mar 10, 2010 | 1998 Ford Explorer

1 Answer

Have code for cylinder #1 misfire on 96 chevy blazer engine runs rough at idle what do i need to do


these were bad for the spider injectors to fail. they are hard to diagnose with out the scan tool. the poppets in the end of the injectors get clogged and will need to be replaced. pull the plug and see if its oil fouled. they also have a problem with the #1 cyl getting out of round and oil fouling the plug. compare it to another plug in the engine. if its oil fouled the engine is no good.

Nov 06, 2009 | 1996 Chevrolet Blazer

1 Answer

Number 4 cylinder miss fire


Check your distributor cap & wires first. If all is ok pull the spark plug and check if it's oil fouled. If there is no oil on the plug the plug might be bad. if there is oil on the plug you can get an adaptor that screws over the end of the plug and shields it from getting oil fouled. Of course this is a temporary solution for a piston ring or valve seal problem. I had a caddy I ran with plug shields fo 5 years so they work! Good luck!....PS If your plug is oil fouled you can also use a heavier oil like a 20/50 or use 4 quarts of 10/40 and a quart of lucas oil stabilizer. This will help keep the oil where it belongs and don't forget to do an oil change every 2,500 to 3000 miles.

Sep 23, 2009 | 1997 Chevrolet Blazer

1 Answer

New spark plugs gone out


If the odor is not heavy gasoline, then they appear to be oil fouled. The cheap fix is to buy at any auto parts store oil burning plugs or sleeves, these will keep the spark plugs slightly further out of the cylinder, out of the oils way, and should provide a reasonable resolution.

Check the PCV valve and hose, if they clog they will cause oil to enter engien cylinders. keep me posted

Dec 17, 2008 | 1998 Oldsmobile Bravada

Not finding what you are looking for?
1998 Chevrolet K1500 Logo

445 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8265 Answers

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

Answer questions

Manuals & User Guides

Loading...