Change your oil. - Hemi Truck Club
 
Go Back   Hemi Truck Club > Technical Forums > General Repair Forum

Like Tree3Likes
  • 1 Post By Davidk
  • 1 Post By Redtruck-VA
Reply
 
Thread Tools Display Modes
 
Old 06-21-2019, 03:48 PM   #1
Junior Member
 
Davidk's Avatar
 
Join Date: Jun 2019
Posts: 9
Change your oil.

Most dont know. If your oil psi drops below 31 and stays below the engine timing is kicked out and the computer won't advance or retard the timing. This produces pinging , poor performance , and just run ability issues in general as well as internal damage. These engines are already known for lifter failure . Dont accelerate the issue . Just a heads up
kcd1369 likes this.

Davidk is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-21-2019, 05:55 PM   #2
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,008
Garage
David, you are right I haven't read that anywhere. What is your reference for this information?
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Old 06-21-2019, 08:52 PM   #3
John
 
SUPER BEE's Avatar
 
Join Date: Feb 2014
Location: Meridian, MS
Posts: 3,646
Garage
I found this in a service manual. Looks to me that 25 psi oil pressure is considered normal as the low side.

DIAGNOSIS AND TESTING - CHECKING ENGINE OIL PRESSURE

1. Remove oil pressure sending unit and install gauge assembly C-3292.

2. Run engine until thermostat opens.

3. Oil Pressure:
Curb Idle– 4 psi minimum

3000 rpm– 25 - 110 psi

4. If oil pressure is 0 at idle, shut off engine. Check for low oil level, a clogged oil pick-up screen, or a pressure relief valve stuck open.
__________________

SUPER BEE is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-21-2019, 09:05 PM   #4
2012 Truck of the Year
Engine Specialist
 
charged392's Avatar
 
Join Date: May 2011
Location: Fort pierce, FL
Posts: 17,236
Garage
Yes hemi engines have very low idle pressure but soon as it’s reeved up it shots right back to spec.
__________________
"CMR TUNER" [email protected] 1/4 with a 7.32 1/8 custom long/short bars by "Me" Turbocharged 392 on 9psi S475/96/1.32 . Running thru an A518! [email protected]
charged392 is offline   Reply With Quote
Old 06-21-2019, 09:24 PM   #5
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,008
Garage
Anything under 35psi bothers the hell out of me..
HemiFun05 likes this.
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Old 06-22-2019, 12:39 PM   #6
John
 
SUPER BEE's Avatar
 
Join Date: Feb 2014
Location: Meridian, MS
Posts: 3,646
Garage
I run AMSOIL 5W30XL Synthetic engine oil in my 2007 Quad Cab 1500, rwd, 5.7L Hemi. My oil pressure at operating temp. has always been the same.

2019 OUTSIDE TEMP. 95 DEGREES
700 RPM: 35 PSI
1,500 RPM: 55 PSI
__________________

SUPER BEE is offline   Reply With Quote
Old 06-22-2019, 12:41 PM   #7
Junior Member
 
Davidk's Avatar
 
Join Date: Jun 2019
Posts: 9
P1524. Oil pressure out of range . Cam timing advance / retard disabled
Davidk is offline   Reply With Quote
Old 06-22-2019, 01:01 PM   #8
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,008
Garage
Quote:
Originally Posted by Davidk View Post
Most dont know. If your oil psi drops below 31 and stays below the engine timing is kicked out and the computer won't advance or retard the timing. This produces pinging , poor performance , and just run ability issues in general as well as internal damage. These engines are already known for lifter failure . Dont accelerate the issue . Just a heads up
To clarify you are speaking of VCT, not ignition timing...
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Premium Vendor Showcase
n2 Speed Edge InTune Edge OCPerformance Parts

All times are GMT -6. The time now is 03:52 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.