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6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum

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Old 08-13-2019, 08:59 PM   #11 (permalink)
dieselolds
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Originally Posted by Knappy View Post
What all is involved in dropping the front axle down? I have never done that.
There are two bolts that fasten the passenger side section of the axle to the frame of the truck.They fasten the right side of the axle to the chassis and the left side of the axle has a long bolt that passes through the frame and axle housing that has a bushing.Once those three bolts are out you can swing the axle downward a little and that’ll give you the space you need to get the pan off.

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1996 GMC Sierra ext.cab Z71....with new genuine GM 6.2 660 short block,4L80E/6.5TD cylinder heads,DS4 5521S,82' 6.2 rocker arms,acdelco TP1069/Racor 20S fuel filters,4" diamond eye exhaust,3.73 G80 locker,stanadyne 37818 injectors

1996 Chevy K1500 Z71.....with '99 6.5 506 goodwrench van engine,88-93 6.2 diesel Napa y-pipe,'87 700R4,acdelco TP630F/Racor 20S fuel filters,Bosch non-turbo injectors,stanadyne blue tag 5088

1993 Chevy K1500 Z71...with 97' 6.5 TD 506 block,82' 6.2 rocker arms,stanadyne 37818 injectors,stanadyne blue tag 4911,DSG girdle,reman 700R4,Banks boost/pyrometer gauges,acdelco TP1069/TP943 fuel filter system,4” diamond eye exhaust/2 piece crossover

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Old 08-22-2019, 04:06 PM   #12 (permalink)
Diehardchevy
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Mine does the same thing. Rebuild Jasper motor. Has done it ever since it was dropped in. Has slowly got worse while looking at the dash gage. I bought another oil pressure sender plug in. But it shows good pressure on start up and drops to almost nothing when warm. How could I check the pressure with a different gage ??

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Old 08-22-2019, 10:02 PM   #13 (permalink)
56pan
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Quote:
Originally Posted by Diehardchevy View Post
Mine does the same thing. Rebuild Jasper motor. Has done it ever since it was dropped in. Has slowly got worse while looking at the dash gage. I bought another oil pressure sender plug in. But it shows good pressure on start up and drops to almost nothing when warm. How could I check the pressure with a different gage ??
Jasper. Bottom feeders to a man. Spent big money on one of their rebuilt 4L80E transmissions for my '93 C2500 and it s*(t the bed under 40,000 miles. Yes, I had it installed correctly. Yes, I flushed out all the lines and cooler. Out of warranty of course. My .02: stay far away from them.
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Old 10-24-2019, 04:38 PM   #14 (permalink)
Knappy
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Well I finally replaced the oil pump and so far it is holding good oil psi. Stays at 40psi while running down the road and Idles at 20psi. I will keep you posted.
Thanks for all the help.

Steve
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Old 10-24-2019, 08:05 PM   #15 (permalink)
johnH123
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whats it look like when you first start it up in the morning?
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Old 10-24-2019, 09:01 PM   #16 (permalink)
Knappy
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Its about 60 psi at first start-up. After it warms up to 190 degrees it will idle at 20 and at 2000rpm it stays at 40psi. I wish it would idle a little higher but I think that's within specs.
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Old 10-25-2019, 06:08 PM   #17 (permalink)
Dadddyoh
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Just my 2 cents. Wow that’s not to high for a rebuilt motor while it still ok. I have 195k on mine and it has same oil pressure as yours. I would expect 40 idle and 50 driving. Are you sure everything in the engine is new especially cam bearings and oil pump.
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1995 Chevrolet K1500 6.5L Turbo (Vin S
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Old 10-26-2019, 09:08 PM   #18 (permalink)
Tommygunner
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Your oil pressure is the same as mine. Yours is totally normal for an oil squrter 506 block engine. Actually pretty good considering it is a rebuild.
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Last edited by Tommygunner; 10-26-2019 at 09:12 PM.
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