Thursday, June 2, 2011

AUDI A4 - spark plug / ignition wire PROBLEM?

I have a 1999 Audi A4 2.8L V6, please help me with these issues:



1. i replaced my spark plugs and put on brand new Bosch Platinum +2 spark plugs and now the car is acting very weird like it has lost its power, it vibrates and feels like its running out of gas or something, especially at low RPMs. i had NGK copper spark plugs in it before. could it be that upgrading to the better Platinum spark plugs actually is hurting the car and not helping? (may be the platinum ones are getting too hot?). please advise what should i do - should i buy new copper spark plugs or is it not a spark plug issue. the car was running normal before the replacement.



2. do i have to replace the ignition wires when i replace the spark plugs?



3. could it be the fuel filter that's causing the car to act like this and feel like it doesnt have full power/strength and vibrate/shake especially at low speeds? how often areyou supposed to change the fuel filter?



Please help me with these questions as soon as possible as i have to drive my car and i dont want to keep driving like this. THANKS!!!AUDI A4 - spark plug / ignition wire PROBLEM?
1- Do not use platinum plugs for starters. The NGK's you had in there prior, are much better.



2- Not necessary, but if the insulation is cracked, then do so.



3- It may be a coil pack, but you did not mention about a Check engine light. Once a year every 15K, you should replace the fuel filter. If your A4 is a quattro it is a PITA to remove and replace.AUDI A4 - spark plug / ignition wire PROBLEM?
I've used many kinds of spark plugs. Bosch Platinum plugs were very troublesome. That very tiny center electrode somehow created problems. But I've had nothing run better than Autolite Double Platinum. These have platinum on the center and ground electrodes.



If they are the original wires, I'd say replace them.



A clogged fuel filter can cause low fuel pressure when you push on the gas, or after running it for a bit. If you haven't changed it, it wouldn't hurt. You can verify fuel pressure with a fuel pressure gauge too.



Also check the computer for codes.

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