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02-04-2020, 08:14 PM
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#1 |
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Registered User
Join Date: Mar 2013
Location: Campbellsville, KY
Posts: 888
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4L60E whine - converter or pump?
'98 K1500, TCCC converter and a PWM pump in the trans. This is a rebuilt unit I installed, with an O'Reillys TC. In the first ~40 mi. of driving the trans. performs fine, but this noise persists. Quiet in park and neutral, in R/D/3/2/1 the noise is roughly engine-speed based and gets louder under load. Coasting the noise is basically non-existent, and it also goes away once the converter locks up. Did I get a bum converter?
https://youtu.be/UL8qsbmLMPs
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Alex V. ------ 1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs. 1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue. |
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02-05-2020, 08:51 AM
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#2 |
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State of Confusion!
  
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,640
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Re: 4L60E whine - converter or pump?
My guess is pump, but I am definitely no expert. I am still OK with the old T350/400s, but leave the newer stuff to my transmission shop.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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