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Old 02-22-2013, 04:06 PM   #1
1sloho
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zetec stumble/hesitation

having a lil issue. when driving, between about 2k and 3k rpm, im getting a hesitation/stumble. car starts and idles fine. when accelerating from a stop, from 1k to 2k rpm is fine. anything over, up to 3k it stumbles. if im cruising and want to accelerate, it stumbles. now if im just driving and it stays in the 2500 area its fine. just when i go to push on the accelerator is when i have the problem. also, seems it tends to "smooth" out the longer i drive. it doesnt seem to be AS bad as when i first start out. im not throwing any codes either. kinda wish it would so i can check it. lol.


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Old 02-22-2013, 05:24 PM   #2
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OK, so what have you done recentely? Mine waas similar, with hesitation from stop, unless I drove like a granny all the time. First was plugs and wires. Then the PCV hose. Then the coil, which pretty much cured it. I lost #3 one day, and HAD to replace it. I do have some stutter at a steady speed between 35-50 mph, like using cruise. But any touch or release of throttle it goes away so I live with it. I have a feeling my EGR is bad, keep getting that code, but ahh well.
Not sure that helped, but maybe some insight. Good luck.
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Old 02-22-2013, 08:16 PM   #3
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Yep - I KNOW you've seen this on here B4, I'll just say to check the coil first - simply 'cause it would be an easy fix, and we've seen it cause similar symptoms....

My Old motto again, "go stupid early, then you won't kick yourself later" (Grin)
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Old 02-23-2013, 12:27 PM   #4
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Alright so, pulled the coil pack and saw this crack....



Would that cause my stumble?

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Old 02-23-2013, 02:08 PM   #5
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Also, forgot to add the car leans out when it stumbles.

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Old 02-23-2013, 02:34 PM   #6
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I had the same exact issue.. Then it got worst.. As soon as the car got warm boom wouldn't maintain IDLE. And it leans out... So I cleaned the MAF and it still did it.. My next recourse will be the Coil Pack and plugs and wires... Hoping that will cure it.


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Old 02-23-2013, 02:43 PM   #7
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yeah, i cleaned my MAF as well and nothing. but like i posted before, the car idles fine. no rough idle or anything. it does lean out under idle though. may pick up a fuel filter also cause that hasnt been done in awhile either.
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Old 02-23-2013, 05:41 PM   #8
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So i went and purchased a new coil pack and went for a quick test drive and i think that was the problem. Didnt hesitate or stumble on me.

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