travisl1213

here is the problem. my car just started doint this tonight. its acting like it bogging and when i rev it its like a snarl sound insted of a growl. i doesnt have nearly the pick up it normally does and it really only does it over 3000 rpms.so i changed the oil last weekend and i cleened the engine on thursday with some cleaner and alot of water and since i cleaned it i havnt drove it more than 30 miles and tonight it started acting as if it were sick and had a cold or somthing. any help will be appriciatted

nathansmith50

you have to change your oil AFTER the engine cleaner treatment......air filter too...

travisl1213

i changed oil filter and i did the k&n recharge kit on the air filter

nathansmith50

but you said you changed the oil and stuff last weekend and you cleaned the engine on thursday......so you need to change your oil and clean and oil your knn filter.....AFTER the engine cleaning.

Gaspi101

99% chance that this is your problem: When you cleaned your engine, you didn't cover your coil packs. Remember, our 4.6s don't use distributor caps. So, you have the two coil packs with four spark wire cables running to the heads there in front of you. I would bet anything that you washed your engine without covering the coilpacks. The result: Water got between the contacts of one of the cables. That means that you're running on less than full spark, probably on 7 cylinders or less.

This DEFINITELY accounts for the **** poor acceleration, and the snarl instead of a growl. If it's not the coil packs, it's the spark plug boots (the other end from the coil packs). Make sure both ends of the spark plug cables have not let water in.

This is how you fix it. Remove all the spark plug cables, noting well which one goes to which cylinder and coil pack plug. It's a good idea to number then. Get some paper towels and clean/dry the mating surfaces very well. A good idea is to also add some spark plug boot grease (sold in little packets in your local auto store)--this stuff will make sure that you don't have this problem again.

Let us know how it turns out!

travisl1213

it worked..... thanks for yalls help

Gaspi101

Just curious: What was the problem? What helped?