1998 Dodge Truck cylinder misfire code

TSLLS93

MEMBER
1998 DODGE TRUCK
V8
4WD
AUTOMATIC
170,000 MILES

I get a cylinder misfire. It seems to only do it when I am not on the throttle. I already changed the spark plugs, wires, rotor and distributor cap.

Monday, March 1st, 2010 AT 5:55 PM

3 Replies

SERVICE WRITER

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9,123 POSTS

What model truck?
What liter size engine?
What codes are you getting?

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Tuesday, March 2nd, 2010 AT 4:40 AM

TSLLS93

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The truck is a Magnum 1500. With a 5.9 engine. The computer reader is code key and it is reading # 6 cylinder misfire. Over the last couple of weeks it has read different cylinders misfiring

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Tuesday, March 2nd, 2010 AT 7:23 AM

SERVICE WRITER

MECHANIC
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It would be good to know if the same cylinders keep missing. So parts can be swapped to see if they move to another cylinder. So it is safe to say there are no other codes. I hope you used quality ignition parts.

If this is truely random intermittant then I would take a look for a small crack coming from where a weight was welded on on the outer edge of the flywheel.

This motor has had problems with valve seats. Perform a compression check and leakdown test. This will also expose a potential headgasket leak.

Also check your fuel pressure is must be in spec.

This is where I would start. If you need specs or more info, just post it.

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Tuesday, March 2nd, 2010 AT 7:58 AM