Question about 1999 Dodge Ram

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Pre-Ignition problems My 99 Dodge Ram 1500 has a 5.2 (318) and has been making the un-mistakable rattling of pre-ignition, I've tried a few options to fix the problem. I've looked at the timing, but it's self adjusting, I removed my catalytic converter so as to reduce any possible pressure being created on the engine, and even though my check engine light frequently turns itself on and off, it's reading no diagnostic codes. I was informed tonight that sometimes retarding the distributor can fix it, but are there any other idea's out there for the fix?

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  • sam-n-gail Dec 28, 2008

    I'm having the same problem , It stops the pre-igniting when I use the highest octane possible but I'm sure this truck shouldn't need premium fuel. Looking for a solution.


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The spark plug wiring on the 1994-1999 Dodge pickups must be dressed so that the individual wires cross each other at right angles or the engine will cross fire.

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There is no such thing as self adjusting timing. the first thing i would do is hook a diagnostic scan tool to the vehicle. you may not have codes that are active but you can still check to make sure the parameters of the vehicle are as they should be. pre ignition is also known as engine knock. make sure the leads to the crank sensor are not frayed or broken. quick way to check to make sure the engine is timed right is to remove the couil wire, then remove the #1 plug and turn the crank manually till the #1 cylinder reaches TDC( you can use a long 1/4 drive extension to insert in the plug hole in the head to feel the top of the piston) remove the cap and make sure the rotor is pointed in the #1 FIRING POSITION. check this out and keep me posted

Posted on Sep 19, 2008

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