Acura CL misfire
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10th Gear
Joined: Sep 2018
Posts: 12
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Acura CL misfire
Hey guys so I have a 2003 Acura Cl that’s had some misfire issues for about a month now. At first I decided to change all the spark plugs witch did not fix the problem. I then decided to take it to a mechanic to take a look. At first he changes one coil and tells me it’s good to go. On the way home it was fine for a few miles then it started misfiring just as bad. So I take it back the next day. He tells me it’s a VVT solenoid that needs to be cleaned then later tells me it’s another coil so he changes that and I take it home again. It runs fine for a day or so then starts misfiring just as bad. Now it runs fine then randomly begins misfiring(CEL light comes on also) for a minute then stops again. My Auto Tech teacher(who was a Honda Master Tech for 20 years) tells me there is a good chance it is the valves that needs adjusting. So here I am wondering if any of you guys have had the same issue or have any suggestions.
Thread Starter
10th Gear
Joined: Sep 2018
Posts: 12
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Thats a great idea except that we’ve only been in class for a few and have only covered jacks, lifts, impacts, Changing/balancing tires. So still have a bit of ways to go before we crack the heads.
Cruisin'
Joined: Jul 2015
Posts: 16
Likes: 4
From: DALLAS
Your intake manifold gasket is upside down. Six ports are being blocked. I fixed mine by flipping the gasket.. Sounds crazy, doesn't it? So simple. It works. Not only did it work for me but it 'unleashed' 20 per cent more horsepower. I've read conspiracy theories on the web about this claiming the gasket was intentionally flipped by the manufacturer to tone-down the CL's horsepower. They were worried it would show up the NSX of that era.
Thread Starter
10th Gear
Joined: Sep 2018
Posts: 12
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Eurotrash
Joined: Apr 2002
Posts: 752
Likes: 44
From: Marin County, California
Yes, I had random misfires around 111k: replaced all the ignition coils, and immediately fixed.
Ignition coils should be replaced as a set and thought of as a maintenance item, like plugs.
Ignition coils should be replaced as a set and thought of as a maintenance item, like plugs.
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