Bucking when cold
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
Might want to check EOT sensor either with a scanner or ohm-meter. It affects timing big time. If you unplug it the CEL will set and PCM will assume a default of 212 degrees F. Easy and cheap test.
Senior User
Joined: Feb 2013
Posts: 126
Likes: 0
Notice that you have 3.55 gears. How do you like them? I have 4.11 (or 4.10 whichever) and always wanted 3.55, any idea how much $ to convert?
Mountain Pass
Joined: May 2006
Posts: 224
Likes: 2
From: Ringebu, Norway
I will measure the resistance of the EOT on monday in the workshop.
It's too cold to do it outside right now.
I was thinking, can the EOT sensor do this; At highway speeds, there is a slight stutter/hesitation and I took the van to the dealership last summer.
They connected a monitor thingy and took a test drive.
The result was that the fuel injection system had a 3 volt drop at that moment when it stutters.
At warm; there is no stutter/hesitation on full throttle, only on maintaining the speed.
At cold; it won't increase to higway speeds until it's warmed up a little, like we discussed earlier in this post.
It's too cold to do it outside right now.
I was thinking, can the EOT sensor do this; At highway speeds, there is a slight stutter/hesitation and I took the van to the dealership last summer.
They connected a monitor thingy and took a test drive.
The result was that the fuel injection system had a 3 volt drop at that moment when it stutters.
At warm; there is no stutter/hesitation on full throttle, only on maintaining the speed.
At cold; it won't increase to higway speeds until it's warmed up a little, like we discussed earlier in this post.
Mountain Pass
Joined: May 2006
Posts: 224
Likes: 2
From: Ringebu, Norway
EOT was measured today at 3 different temperatures, all OK.
IAT was perfect also.
ECT was way off scale??? It shows 194,5 Ohms at 30 degrees celcius.
It should show 24 k Ohms at 30 Degrees celcius.
Is the cooling water sensor giving me all this trouble
IAT was perfect also.
ECT was way off scale??? It shows 194,5 Ohms at 30 degrees celcius.
It should show 24 k Ohms at 30 Degrees celcius.
Is the cooling water sensor giving me all this trouble
Senior User
Joined: Feb 2013
Posts: 126
Likes: 0
Noticed you have a 1 ton van. Any idea what the gear ratio is on the 16 passenger vans approx 2005-2007?
Senior User
Joined: Feb 2013
Posts: 126
Likes: 0
I dont own one but I had driven one a few years back and remember being impressed with the way it ran. Thought that rear end may help contribute to my decision regarding my next purchase.
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