2001 Mazda Tribute engine misfire

Submitted: Thursday, May 08, 2008 at 08:43

ThreadID: 57373 Views:6288 Replies:5 FollowUps:7

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willow254

I am having trouble with my V6 Mazda Tribute where the front middle cylinder is misfiring intermittently the plugs and coils have been swapped around but the problem is still on the same cylinder. Is there any easy solution to this? Can any one help please?

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Reply By: Notso - Thursday, May 08, 2008 at 09:07

Thursday, May 08, 2008 at 09:07

Have you swapped the cable connecting the coil to the spark plug. It doesn't take much loss in the cable to cause a misfire.

Either that or a fuel problem, maybe an injector.

Does it only happen at idle or across the rev range?

AnswerID: 302633

Follow Up By: willow254 - Thursday, May 08, 2008 at 09:16

Thursday, May 08, 2008 at 09:16

The mechanic has rotated the coils and plugs and has checked the lead resistance but the misfire continues to be on the front centre cylinder

FollowupID: 568727

Follow Up By: Notso - Thursday, May 08, 2008 at 09:24

Thursday, May 08, 2008 at 09:24

Most likely a fuel problem,

Does it miss across the rev range or only at idle

FollowupID: 568728

Follow Up By: willow254 - Thursday, May 08, 2008 at 09:52

Thursday, May 08, 2008 at 09:52

More noticeable when the engine has some load. In the mornings it is almost not apparent. But when I use it at lunch the miss is worse. I mechanic thinks the cylinder is misfiring electrically with different plug and coil.

FollowupID: 568735

Follow Up By: Member - David P (VIC) - Thursday, May 08, 2008 at 09:59

Thursday, May 08, 2008 at 09:59

Sounds electrical....try an auto sparky....silverback

FollowupID: 568737

Follow Up By: Notso - Thursday, May 08, 2008 at 11:23

Thursday, May 08, 2008 at 11:23

Has he checked the compression, and I would swap the plug lead as well, even though he has checked the resistance.

FollowupID: 568763

Follow Up By: mr fixit - Thursday, May 08, 2008 at 17:38

Thursday, May 08, 2008 at 17:38

One of the coils is U/S
Replaced plenty of them

FollowupID: 568851

Reply By: willow254 - Friday, May 09, 2008 at 08:40

Friday, May 09, 2008 at 08:40

Individual coils that mount on the plugs and both have been swapped with another cylinder. The problem still stays with cylinder 3.

AnswerID: 302827

Reply By: mechpete - Friday, May 09, 2008 at 22:40

Friday, May 09, 2008 at 22:40

check for an air leak on that cylinder ,compression test is a must .
pull off the rocker cover an measure the valve movement to one of the other cylinders maybe worn lobe on cam
mechpete

AnswerID: 302977