Question about 1999 Dodge Ram

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Misfire on #6 and #8 cylinder 1996 Dodge Ram 1500

318 engine. replaced plugs, wires, dist.cap, rotor button, head gaskets, has 150lbs compression on all cylinders, checked all fuel injectors and they are spraying. one mechanic says cam may be bad.

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Check the spark plug wiring . There are several places where the wires cross each other. These wire cross points MUST be at right angles to each other. Or you will have a misfiring problem.

Posted on Jul 07, 2009

  • Noyb merlin Jul 08, 2009

    This is a follow up on my last post. The information on plug wiring is here:

    Dodge 1995-1999 V8 spark plug wiring.
    It worked for me.


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  • Dodge Master
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Strip heads off again and remove the valves and check the seats ,regrind the valves and fit new springs and seals ,also check the cam lobes for deformation (wear)

Posted on Jun 22, 2009


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1 Answer

Miss fire #6 cyl 2000 dodge 3500 van 5.9 egine

100 PSI is way to low, I think you have a burnt valve. Check the cylinder compression on all cylinders, no cylinder should be 5% lower than the highest cylinder pressure measured or the engine will run rough or misfire.

Jan 31, 2017 | 2000 Dodge Ram 3500

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Getting a cylinder 6 misfire I have replaced coil rotor button dist cap plus and wires were do I go from here code wont go away and eng still has rough idle

Fuel injector or wire to it. Check the wire with a test light or noid as the car is running. The light should flash. Wires good. Use an ohm meter and check the lead in the injector. Should be 11 to 15 ohms. After that is a compression test on that cylinder. No compression is a blown head gasket. If all that checks good, Then I would be looking at the intake manifold gasket. They can blow and pump coolant in a cylinder. Year make and model helps. Some models have know problems.

Mar 22, 2015 | Cars & Trucks

1 Answer

96 acura tl 2.5 liter,short term fuel trim at negative 20 percent

Do a cylinder leak down test,for bad valves on #3
or head gasket,misfires for a reason

(Cam Worn ?)

Have to get rid of any misfires

If your taking out 20% your correcting for a rich condition,maybe

Some injector issues,old,need to be sent away for cleaning & flow
testing or replaced?

Drive it for 30 miles & add short & long term & see what you get

Exhaust Converter any good ?

Mar 25, 2014 | 1996 Acura TL Series

1 Answer

New plug misfire in dodge ram 1500 6 cyl van

could be your coil, but can also be internal, have you replaced both the air & fuel filters ? if so, dump some good fuel injector cleaner into tank when half empty , top off with 91-92 octane fuel, see how that works for you, do some highway driving, stop & go traffic creates problems, todays fuel w/ethonal is bad for older cars, be sure to have code cleared from ecm !

Feb 15, 2013 | 1999 Dodge Ram

1 Answer

My 99 cherokee sport 4x4 straight 6 is misfiring 3 and4 cylinder.i changed wires,plugs cap,rotor, coil pack and still runs bad.looking for a answer please

test the compression, also look for a intake manafold leak, take a can of carb cleaner and spray around were the intake mounts to the cylinder head if the engine smouth out replace the gasket or the injector o-rings.....we do a lot of valve jobs on these engines so do a compression test if below 100 psi remove the head and replace the valves and most likly the valve seats....good luck

Jan 23, 2012 | 1999 Jeep Cherokee

2 Answers

I have a 2001 dodge ram 1500 4wd and three codes came up P 300 p 301 and p 308 what are these ??? help please!!

The codes mean as follows
PO300 multiple cylinder misfires
PO301 #1 cylinder misfire
PO308 #8 cylinder misfire
Some of the more common causes for these codes popping at once are, if you went through a big
puddle and the engine and wires are wet or the distributor cap and/or wires are bad or the camshaft
sensor(located inside dist cap) is bad and sending false signals. Hope this helps.

Oct 29, 2010 | Dodge Pickup Cars & Trucks

1 Answer

I have a 1979 350 small block #2 cylinder is not firing and backfires through the carburetor when accelerating but seem to idle fine. We have done compression test 150lbs per cylinder and removed the valve...

your on the right track,change the dist.cap and rotor, if that doesnt solve the problem then you may have a bent valve or bad lifter or worn lob on the cam!!!

Feb 28, 2010 | 1983 Chevrolet Chevy

1 Answer

I have a 2000 dodge stratus and cylinders 4,5,and 6 misfires at idle I changed the plugs ,wires, dis.cap and rotor.the compression is fine on a11l

There is a distributor control module underneath the dist cap change that make sure to lube it with the silicone it comes with

Sep 09, 2009 | 1997 Dodge Stratus

1 Answer

1997 Dodge Stratus, 2.5L 4 cyl engine. Engine diagnosis from a trouble reader = cylinder 3 misfiring. The plug and spark plug wire are good. I don't know how too test the electronic ignition or the fuel...

Test the compression in that cylinder. Make sure you have the correct plugs, and good wires, as well as the cap and rotor button. If you have good compression, and the plugs and all are good, I would suspect either a bad fuel injector, bad head, or a bad distributor.

Aug 12, 2009 | 1997 Dodge Stratus

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