Shifting issue, please help.
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Joined: Jun 2010
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Shifting issue, please help.
I have a 2005 Screw KR, 5.4L. The other day my truck started this problem-
I'll be cruising along, doing 45-50 mph, turning 1100-1200 rpm's. As I start to go up a hill, the transmission starts jerking, like its trying to downshift to up the rpm's to get up the hill and it won't do it unless I give it more gas. Once I give it gas, it downshifts, rpm's go up and everything is fine. You can definitely tell the truck is trying to downshift but it won't do it.
Any ideas of what this might be and what fixes the problem?
I'll be cruising along, doing 45-50 mph, turning 1100-1200 rpm's. As I start to go up a hill, the transmission starts jerking, like its trying to downshift to up the rpm's to get up the hill and it won't do it unless I give it more gas. Once I give it gas, it downshifts, rpm's go up and everything is fine. You can definitely tell the truck is trying to downshift but it won't do it.
Any ideas of what this might be and what fixes the problem?
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Joined: Jun 2010
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jk---
So if its a miss, I would assume that's a plug issue? I have searched & searched and found a couple of things:
1) Some folks have changed the tranny fluid & filter and problem solved.
2) Some have a coil spring go bad.
3) Plugs on the 05 5.4L are an absolute nightmare to change and based on what I have read, I will ONLY have my dealer do this job.
I noticed you are a master transmission builder.....what part of GA are you in??
So if its a miss, I would assume that's a plug issue? I have searched & searched and found a couple of things:
1) Some folks have changed the tranny fluid & filter and problem solved.
2) Some have a coil spring go bad.
3) Plugs on the 05 5.4L are an absolute nightmare to change and based on what I have read, I will ONLY have my dealer do this job.
I noticed you are a master transmission builder.....what part of GA are you in??
Transmission Rebuilder
Joined: Jul 2008
Posts: 1,569
Likes: 62
From: North Georgia
We have customers bring there vehicle in complaining of the transmission jerking, most of the time it turns out to be a bad coil. We can find out which one it is by using our scanner.
Transmission shudders can be fixed by changing the fluid.
We are north of ATL in Roswell.
Transmission shudders can be fixed by changing the fluid.
We are north of ATL in Roswell.
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