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6.5 turbo diesel no oil pressure at idle and 20lbs when driving

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  • nicks08 Jan 26, 2009

    I have a 97 Chevy as well and when idlin i have low oil pressure when its warmed up an when i get drivin down the road it picks up but it gets really low when i tow a trailer. I tried some synthetic oil and it seemed to help some and i also have a mechanical guage in it an it reads the same as the one in the dash. I'm guessing i need a new oil pump and possibly a bottom end.

  • Anonymous Apr 07, 2009

    same problem no oil pressure at idle......... replaced main and rod bearings. checked oil pump..... exactly the same...

  • yadayada
    yadayada May 11, 2010

    Have you verified this pressure with a mechanical guage?

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Cam bearings... 6.5 oils from top down
cam-----> crank-----> rods
If you changed mains and rods you must have overlooked the cam bearings.

Posted on Feb 26, 2011

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How do I keep my cz550 running for longer than 3 minutes before cutting off


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understanding how a turbo works is the key to the answer as the turbo is already cooling down and slowing down as you are coming to a stop and the extra 3 minutes is a safety period to complete that process
If you are concerned about a turbo failing then there is an accumulator that can be purchased after market that is fitted to the oil circuit of the turbo
It has a bladder in a case and oil pressure pressurizes that bladder so that when the engine is stopped , that oil is pushed back through the turbo bearings It can be fitted to any turbo engines
it is particularly useful for engines that are subject to stall conditions such as 4wd that are operating in conditions where clutch operations causes the engine to stall
however to answer your question , there may be a small adjustment in the side of the timer box or in the box that can be reset to longer time
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1 Answer

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Hi, I have a 2001 ford f250 diesel. Recently I`ve lost fuel ecomomy (600 km/tank to 400km/tank),and also lost power. The turbo sound has changed and is not as quick to spool. At normal driving turbo...


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SECTION 303-04C: Fuel Charging and Controls — 7.3L Diesel 2000 F-Super Duty/Excursion/Motorhome Chassis Workshop Manual
DESCRIPTION AND OPERATION Fuel Charging And Controls Fuel System
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Fuel System Components

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2 Answers

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