Welcome Visitor! Please take a few seconds and firenexx
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- Joined
- May 29, 2010
- Messages
- 25
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- Vehicle Year
- 1994
- Make / Model
- Mazda
- Transmission
- Manual
Hey folks, I have a '94 Mazda B4000. 230k miles.
Here's what's happening. I think 2 or 3 cylinders aren't firing at times. Started yesterday. I drove it out the driveway, then it kept stalling, wouldn't start unless I gave it gas. When it did start, it would be smooth for maybe 10 seconds, then would start bucking and losing power, then surging forwards again. Tried to stall whenever I put it in neutral. Have to keep tapping the gas pedal at lights to keep the engine going. I whimpered back down the driveway.
Changed the fuel filter, thought it might be that. Started it up this morning, drove it 10 mins no problem. Stopped at a store, when I drove away it started doing the same thing - stalling, rough running, etc.
I saw blacker smoke coming from the exhaust when it was bucking/etc, and in combo with the rough running, indicates 2 or 3 cylinders intermittently misfiring, yes?
We *thought* we smelled a burning plastic smell, but it was faint.
Also, occasionally I would see the voltage indicator jump around erratically.
We parked and jiggled the spark plug cables attaching to the ignition coil pack, and it worked fine for a few minutes then started acting up again. Finally had it towed home.
Do y'all think it's the ignition coil packr? Is there any way I can test this?
Here's what's happening. I think 2 or 3 cylinders aren't firing at times. Started yesterday. I drove it out the driveway, then it kept stalling, wouldn't start unless I gave it gas. When it did start, it would be smooth for maybe 10 seconds, then would start bucking and losing power, then surging forwards again. Tried to stall whenever I put it in neutral. Have to keep tapping the gas pedal at lights to keep the engine going. I whimpered back down the driveway.
Changed the fuel filter, thought it might be that. Started it up this morning, drove it 10 mins no problem. Stopped at a store, when I drove away it started doing the same thing - stalling, rough running, etc.
I saw blacker smoke coming from the exhaust when it was bucking/etc, and in combo with the rough running, indicates 2 or 3 cylinders intermittently misfiring, yes?
We *thought* we smelled a burning plastic smell, but it was faint.
Also, occasionally I would see the voltage indicator jump around erratically.
We parked and jiggled the spark plug cables attaching to the ignition coil pack, and it worked fine for a few minutes then started acting up again. Finally had it towed home.
Do y'all think it's the ignition coil packr? Is there any way I can test this?
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