jQuery not supported.



Sudden loss of oil pressure, 4.3L

Sudden loss of oil pressure, 4.3L

Postby 05silver [OP] » Feb 12 2013, 4:30am

I was driving a long last night when my truck died suddenly, looking down I saw that the console said "low oil pressure". I coasted the truck to the side, checked the oil (full) and tried to fire it back up, no luck. No tach pulse on the dash, assumed dizzy.

Pulled the distributor cap, cranked engine, rotor spins...

Pulled the distributor for the heck of it, gear shows normal wear, pump slot is good and the pump spins freely with a screw driver. Distributor does seem to have a lot of vertical play, not sure if that matters when it's bolted down though.

Installed a new oil pressure sensor from the dealer as I've had bad luck with the aftermarket ones, re-timed engine, same old same, cranks over, no fire.

Thoughts? Truck has 145k on it, possible oil pump? Pick up tube fell off? Am I focusing too much on the oil side of things given I seen the "low oil pressure" light?
Original Poster
05silver
Newbie
Newbie
Posts: 1
Topics: 1
Blogs: 0
Joined: Feb 12 2013, 4:22am
Years of membership: 1 year of membership
Group Membership:
Registered users
Related Topics  Sudden loss of coolant   oil cooler line failed. oil everywhere low oil pressure.   To use K-Seal or not: oil & coolant loss   Changed oil sending Unit. oil pressure gauge pegged on high   Low oil pressure reading, too much oil, seized at crank   6.0 no/low oil pressure after new oil pump install   Oil Leak - Suspect Oil Pressure Sender   low oil pressure after oil change   Oil Pressure   Oil pressure   Oil pressure   Oil pressure   oil pressure   No Oil Pressure 
Engine Sponsor
Advertise Here

Re: Sudden loss of oil pressure, 4.3L

Postby country1911 » Feb 12 2013, 5:13am

Takes three things to make a motor run, air, fuel and spark. Are you getting fuel and spark in the cylinder? The low oil pressure warning could have come from the motor suddenly shutting down. Or it may be related. Have you taken a manual oil pressure reading while cranking the pump?
User avatar
country1911
Shifting into Third Gear [L3]
Shifting into Third Gear [L3]
Posts: 1327
Topics: 41
Images: 2
Blogs: 0
Joined: Sep 20 2011, 3:21pm
Years of membership: 2 years of membership2 years of membership
Location: Galesburg, MI
Year: 2007
Make/Model: Chevrolet Silverado
Variant: VHO/Vortec Max
Extra Info: LTZ 4X4
Group Membership:
Registered users

Re: Sudden loss of oil pressure, 4.3L

Postby ASTE25 » Feb 12 2013, 6:38am

Well, I'm sure it's probably not causing the original problem, but, now that you pulled the distributor you will have to have the camshaft position sensor reset with someone that has a diagnostic scanner. I would hook a manual pressure gauge to it and see what kind of pressure you have while cranking it.
Jordan
2013 Blue Granite Metalic Silverado 2500HD Z71 4X4 extended cab regular bed
6.6L Duramax/Allison 6 speed
Line-X premium over the rail (black)
User avatar
ASTE25
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 10907
Topics: 19
Images: 21
Blogs: 0
Joined: Jan 03 2011, 6:37am
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: New Market, Alabama
Year: 2013
Make/Model: Chevrolet Silverado
Extra Info: 2500HD Z-71
Group Membership:
Automotive Technicians
Member Extraordinaire
Registered users

Return to Engine

 

  • Similar topics
    Replies
    Views
    Last post

Common search terms

while sudden pressure loss long last dealer driving probably installed make same back engine problem side getting light fuel

It is currently Aug 23 2014, 6:30am

  • Sponsor
Login  •  Register
SHOP TALK (Live Chat)
Engine Forum
EngineThis is where all of our engine discussion and conversation takes place. Talk about engine diagnostics, adjustments, modifications, performance and care. Motor tuning and repair to gain horsepower and fuel efficiency.
To create a new topic in Engine, click this button:
Previous topic Next topic
Sitewide News Sitemaps & Feeds

Who is online

Users browsing this forum: silveradoguy16silveradoguy16 is online! and 15 guests