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12-30-2023, 01:32 PM | #1 |
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Location: Tucson, AZ
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Re: Shifting at high RPM
Agreed.
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1987 V20 farm-hand rescue 1998 C2500 lot-rot rescue |
12-30-2023, 01:45 PM | #2 |
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Re: Shifting at high RPM
Always the simple and obvious things get you
But what is? I’m still waiting to know the reason of oil spillage?
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1972 GMC Sierra C2500, V8-350 1986 GMC Sierra C2500, V8-454 1986 GMC Sierra C2500, V8-LS1 1986 GMC Sierra K2500, V8-350 1987 GMC Sierra R3500, V8-454 1997 GMC Sierra K2500, V8-454 |
12-30-2023, 02:21 PM | #3 |
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Join Date: Mar 2003
Location: Colfax-California
Posts: 8,414
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Re: Shifting at high RPM
Oil level in the transmission while running is approximately at the oil pan gasket level. Vacuum Modulator is above the pan. If the truck sits for any amount of time the torque convertor will drain out some raising the level in the pan until you start the truck again. So to answer your question...it depends.
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12-30-2023, 02:45 PM | #4 | |
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Re: Shifting at high RPM
Quote:
But still the issue isn’t resolved
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1972 GMC Sierra C2500, V8-350 1986 GMC Sierra C2500, V8-454 1986 GMC Sierra C2500, V8-LS1 1986 GMC Sierra K2500, V8-350 1987 GMC Sierra R3500, V8-454 1997 GMC Sierra K2500, V8-454 |
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12-30-2023, 03:49 PM | #5 |
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Join Date: Mar 2003
Location: Colfax-California
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Re: Shifting at high RPM
Yeah, I know. Kinda hard to diagnose over the internet without having hands on. We did hit the basics. I'm still thinking of a sticking valve in the valve body. The person to ask ---who is no longer here--- is clinebarger. He was really good on these maters
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12-31-2023, 09:48 AM | #6 | |
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Re: Shifting at high RPM
Quote:
The question is when I replaced the vacuum modulator the second time and oil came pouring out, 1. Where this oil coming from, I mean what opening? Why the valve didn’t come out? I tried to drive in D1 and D2 to see if any changes, nothing.
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1972 GMC Sierra C2500, V8-350 1986 GMC Sierra C2500, V8-454 1986 GMC Sierra C2500, V8-LS1 1986 GMC Sierra K2500, V8-350 1987 GMC Sierra R3500, V8-454 1997 GMC Sierra K2500, V8-454 |
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01-04-2024, 12:22 PM | #7 | |
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Re: Shifting at high RPM
Quote:
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