Can you tell me the routing of the plug wires from the coil pack to the plugs ?
You didn't mention whether this was a 4 cylinder or 6 cylinder. Below is a link to the procedure for swapping them out, and down around step 7 is a diagram that shows where each cylinder connects to the coil pack. Cavalier is the Chevy equivalent of the Grand Am. Same parts and procedures usually work for both.
V6Z24 How To Plug Wire Replacement
SOURCE: Misfire
Check to make sure the fuel injector is working on that cylinder, check the connector to the injector for a loose or damaged pin, get a NOID tester from a parts store and see if the injector flashes the NOID light while the engine is running or cranking.
SOURCE: 2003 grand am 3.4 code p0304
More likely a plugged injector as that code is specific to cylinder # 3 These engines are also very prone to failed intake manifold gaskets and stuck valve lifters. I think I'd start with a compression test, if that's good, go injector. If the compression is bad, you've got a can of worms. Hold off on the O2, I don't think it's related.
SOURCE: Intermittent white smoke out exhaust and engine misfire
The piston rings in your engine might be needed to be replaced already... go to a local shop with a compression tester.. have your engine tested for compression leaks.. if it does have compression leaks.. then you need to change piston rings. Note** white smokes = engine is burning oil..
SOURCE: spark plug wiring diagram for gm 3.4 liter v6
http://autorepair.about.com/od/enginefiringorders1/Engine_Firing_Orders.htm
SOURCE: i have a 99 grand am SE 2.4 4 cylinder and my
A misfire doesn't always have to be ignition... it's just the most common cause. Faulty or plugged injector, low compression. You need to check fuel pressure and test the fuel injector flow. Then check compression. If you don't have tools for these tests, take it to someone who does. Testing is much cheaper than throwing parts at the problem.
155 views
Usually answered in minutes!
×