Question about 1997 Chevrolet Tahoe

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#2 Cylinder is misfiring after having the intake manifold gasket replaced. Possible reasons, troubleshooting/diagnostic steps, and solutions would be appreciated. Thx.

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  • Chevrolet Master
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You have a intake leak in gasket at 2 cylinder.

Posted on Jul 03, 2009

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Head gasket or intake manifold gaste again 96 k1500 5.7 vortec. starts runs idles and drives rough it likes to **** while trying to drive almost as if it wants to stall out. i put my scanner on it and


The website has software that looks for obscene words.
I would think a compression test would show if the cylinder is having mechanical problems. And yes the intake or head gasket could be leaking again, especially if the intake or head were warped or cracked.
Have you checked fuel pressure ?
Does the spark plug for cylinder 5 show signs of coolant leaking into the cylinder ?

Feb 09, 2013 | 1996 Chevrolet K1500

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Stalling and running rough - Hyundai Elantra - 2001-05


The Hyundai Elantra 2001 - 2005, 2.0 L engine is noted for this problem. It will lack power on acceleration and run rough and stall while driving. The engine light will come on for misfire codes. This problem is caused by a vaccum leak at the intake manifold gasket. The gasket is broken and needs to be replaced.
To replace the intake gasket with a new one, remove the 12m nuts holding the intake to the cylinder head. Then pry back( note: you do not have to completely remove the intake manifold here) the intake manifold to gain excess to remove the old gasket. Remove any excess gasket and clean with brake cleans the surface area of the intake. Install the new intake gasket on to the head and carefully install intake on to cylinder head studs. Tighten up nuts gradually and evenly to 15-20 ft.lbs.

Steve

on Jan 14, 2010 | Hyundai Elantra Cars & Trucks

1 Answer

I have had 3-4 spark plugs crack on the inside insulator on cylinder 3 causing misfire issues. What is a possible solution?


Porcelain usually cracks due to excessive heat. Excessive heat in the cylinder of an internal combustion engine is usually caused by a lean mixture. A lean mixture is quite often the result of a vacuum leak. I would check for a vacuum leak on the #3 cylinder intake runner as well as the intake manifold gasket. You can use spray carb cleaner or propane.

Aug 06, 2011 | 1999 Ford Ranger SuperCab

1 Answer

Car keeps giving p0303 code.


Code P0303 means that there is a misfire detected on cylinder #3. This could becaused by anything from a worn out spark plug to a blown cylinder head gasket, a faulty fuel injector, a bad ignition coil, or a leaking intake manifold gasket. I have also seen this type of code caused by clogged-up EGR ports in the intake manifold on certain engines. "Freeze Frame Data" stored in your Engine computer along with the fault code is designed to help identify what engine conditions (high speed/slow speed, heavy load/light load, etc.) are producing the misfire. This helps a lot in identifying exactly what is causing the cylinder to misfire.

One way to eliminate some of the possible causes is to swap parts with another cylinder to see if the code changes.

If you have "Coil-On-Plug" ignition, you can swap the coil on #3 cylinder with the coil on #4 Cylinder and swap the #3 spark plug with the #2 spark plug. Then clear the codes and drive the car till the Check Engine (or Service Engine Soon) light comes back on.

If it still gives you P0303, then it is not being caused by the plug or the coil. It could be any of the other possible causes listed above.
If it now gives you P304, replace the bad ignition coil that is now on #4 cylinder.
If it now gives you P302, Then replacement of all the spark plugs is recommended.

Dec 26, 2010 | Chrysler PT Cruiser Cars & Trucks

1 Answer

Cylinder #2 Misfire-after intake manifold replaced


It's possible he has two plug wires crossed, or pulled a spak plug wire apart replace #2 spark plug wire First. To test check the firing order and make sure all the wires on the right plugs and the correct place on the distributor, if it is right, then buy a can of carburator cleaner and spray around the intake gasket if the engine revs up when you spray the carb cleaner around the intake manifold with (engine running) if the engine rpm revs up you have an intake leak.

Jul 03, 2009 | 1997 Chevrolet Tahoe

2 Answers

Will not start after it stalls untill about 5-10 minutes


spray carb cleaner on the intake manifold near cylinder 1... common problem is the intake manifold gasket leaks vacuum causing a misfire...the not starting could be due to a faulty crank sensor

Feb 27, 2009 | 2002 Saturn Sl

1 Answer

Engine missing, particularly in idle, or dies when turning


The intake gaskets leaking would cause the engine to have a misfire. Get a can of Brake Clean and spray in around the intake manifold on the top of the engine while the engine is running. The engine idle will go up or down if there is a leak. Also try swapping the spark plug with another spark plug to see if the misfire moves to another cylinder. If it moves then you have a bad spark plug. I hope this helps.

Jan 02, 2009 | 1995 Pontiac Bonneville

1 Answer

Troubleshooting code po301


The MAF will not cause a miss on just one cylinder, here are the things that will, low cylinder compression, defective fuel injector, intake manifold vacuum leak at the gasket, and of course ignition system problems.

Dec 13, 2008 | 2003 Nissan Sentra

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