Question about 1999 Chevrolet Silverado 1500

1 Answer

99Tahoe cylinder #5

The first plug I pulled out of that hole was all black but dry, believe the vehicle has less that 40 miles before coming to me after being at previous shop. #5 does have spark as I have checked. That cylinder has history of 42074 misfires, the next is #6 with 6192, #7 with 4556, #4 with 3204, #8 with 248, #2 with 99 and #1 and #3 with no misfires. The exhaust smell rich but as I stated before, disabling the injectors 5, 6, 7 and have no effect on the way the engine runs. Thanks for your input and hopefully this gives you a little more info. Jason

Posted by on

  • dadzboyz Jan 11, 2009

    Thanks for the input, come to find out that #5 and #7 injectors bad, I do believe. But have not ruled out catalytic converter being plugged do to slow reving. Appreciate it.

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 14 Answers

Sounds like plug wires are bad, how many miles? also does motor have individual coil packs at each cyl.would be crazy if that many coil packs went bad all at the same time,unless driver wasnt aware(woman) of the problem.

Posted on Jan 09, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

3 Answers

I have a 2000 Volkswagen Beetle 2.0 5 speed the number 2 cylinder keeps blowing the spark plug out of the hole what would cause that and how to fix it?


The spark plug should not come out if it is the proper application spark plug with the correct torque. Sounds as if the plug hole may have damaged/stripped threads which can lead to a costly repair. There is an alternative repair for this without removing the cylinder head. A Heli-coil can be installed into the damaged plug hole. If installed correctly, this repair can last the life of the vehicle at a fraction of the cost

Feb 23, 2016 | Volkswagen Cars & Trucks

2 Answers

Should I use conventional or high mileage motor oil for my engine with 244,000 miles


Even if the vehicle has had regular oil changes with filters every 5-6000 miles use the high mileage specific oil. The engine will have wear no matter how good the previous maintenance has been. been.
I have a Honda that has 180000 miles on it and notice that on longer journeys it uses oil even though it has been well looked after since new. The high milage oil makes it run less noisily, (it is a diesel.) I believe it make the engine more longer lived too

Jul 16, 2015 | Cars & Trucks

1 Answer

#2 cylinder misfire after going thru carwash what's the cause? 2009 Volvo S40-2.4i


You most likely have water in the spark plug hole that is shorting out the coil pack. Pull the Coil Pack and dry it out and spray with WD40

Jul 06, 2014 | 2009 Volvo S40

1 Answer

How to change the spark plugs in a mazda 2 2012


Sorry, Mazda has not released specific information about the 2012 models to the aftermarket yet. The nearest I could come up with is for a 2010 Mazda 3i (I am sure it is probably similar).

> Remove the plug hole plate from the top of the valve cover assembly
> Remove ignition coil assemblies
> Remove spark plugs
> Installation is reverse procedure

With all that said, it is not necessary to replace spark plugs in your vehicle for 100,000 miles. I find it hard to believe that your 2012 car could possibly need spark plug replacements at this early age.

Jun 02, 2012 | 2012 Mazda 2 Sport 4dr Hatchback 1.5L...

1 Answer

How to change the spark plugs mazda 2 2012


Sorry, Mazda has not released specific information about the 2012 models to the aftermarket yet. The nearest I could come up with is for a 2010 Mazda 3i (I am sure it is probably similar).

> Remove the plug hole plate from the top of the valve cover assembly
> Remove ignition coil assemblies
> Remove spark plugs
> Installation is reverse procedure

With all that said, it is not necessary to replace spark plugs in your vehicle for 100,000 miles. I find it hard to believe that your 2012 car could possibly need spark plug replacements at this early age.

Jun 02, 2012 | 2012 Mazda 2 Sport 4dr Hatchback 1.5L...

1 Answer

Cylinder 4 misfire w/fouled plug


do a compression test , could be a dead hole

May 27, 2012 | 2002 Chrysler Voyager

1 Answer

Vehicle missing,shaking,engine light comes on


Misfire could be a number of things:
a) spark plugs - change them if used over 15K miles - inspect/regap.
b) spark plug wires - change them if over 15K miles - inspect
c) ECM (electronic control module) - test with HEI (high energy ignition) tester.

The shaking tells me that the engine is running on less than its normal compliment of cylinders - the shaking is produced by the imbalance caused in the engine by one (or more) cylinder(s)
not firing at all.

The "Check Engine" light probably is coming on due the the misfire condition. Go to Pep Boys or
Advance Auto Pats, where they'll tell you (free) your codes causing the "Check Engine' light to be
lit - the code coming from your truck's computer will probably be one or more of:
P0300 - Random/Multiple Cylinder misfire detected
P0301 - Cylinder 1 misfire detected
P0302 - Cylinder 2 misfire detected
P0303 - Cylinder 3 misfire detected
P0304 - Cylinder 4 misfire detected
P0305 - Cylinder 5 misfire detected
P0306 - Cylinder 6 misfire detected
P0307 - Cylinder 7 misfire detected
P0308 - Cylinder 8 misfire detected
P0313 - Misfire detected with low fuel

Jun 23, 2011 | 2004 Ford F150

2 Answers

Should I switch to synthetic when I reach 75000 miles?


you can switch to synthetic when ever you want but synthetic oil is usually made for vehicles with 100+ miles...

Oct 13, 2010 | 2002 Chevrolet Cavalier Coupe

1 Answer

Honda Misses.


Pin point the dead hole and check that injector.

Dec 23, 2008 | 1995 Honda Accord

1 Answer

Distrbutor to spark plug wiring


Hey there janandshane,

I've got a 91 Wrangler, lots of fun. Here's your info.

Viewed from above, front of vehicle on the right side, cylinder locations are:
6 5 4 3 2 1 for a six cylinder and 4 3 2 1 for a four Cylinder

The firing order is:
1 5 3 6 2 4 for the six and 1 3 4 2 for the four.

The distributor rotation is clockwise.

To find Top dead center (for wire to cylinder #1 on distributor), look for and line up the timing marks on the crankshaft (front of the engine).

Or, pull the #1 spark plug, stuff the hole with a cork or a rag. Slowly crank the engine until the cork pops out.

Pull the distributor off. The rotor is pointing where the plug for cylinder #1 should go. The rest of the wires go in the firing order clockwise.

That about covers it.

Remember: Good things come to those who rate. How about a nice FixYa?

Mike

Aug 16, 2008 | 1987 Jeep Wrangler

Not finding what you are looking for?
1999 Chevrolet Silverado 1500 Logo

Related Topics:

130 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

60867 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...