Removing motor honey from engine.

Joined
Feb 6, 2010
Messages
970
Location
KY, USA
Usually oil pressure will be much higher on a cold start than after the engine is warm. I too think you have a clogged screen in the pick up tube, bad pressure sensor, or something else along those lines. I used to run STP in an old Escort, 70-75PSI on a cold start wasn't uncommon. Pressure on a warm engine would drop to about 40-45 psi at highway speed. The reason you added Motor Honey in the first place was engine noise. This is a hint that there may have been a lubrication problem prior to putting it in the engine. Years ago I used STP along with 10w40 in near 0*F temperatures and never experience low oil pressure because of it. I've used both STP and Motor Honey years ago and they're about the same consistency.
 
Joined
May 30, 2010
Messages
15,659
Location
North Carolina
Could be a bad o-ring where the oil pickup tube goes into the oil pump. Also, some GM's have a screen behind the oil pressure sending unit. You might check and see if that's plugged up with crud.
This is a known problem on certain engines.
Op , on what make and engine are you experiencing this problem ?
 

greg999

Thread starter
Joined
Oct 15, 2020
Messages
9
So after extensive trouble shooting, it turns out the "motor honey" was fine, and just precipitated the issue. i have a dreaded bad oring in my 5.3 chevy silverado. I plan to replace the oring, oil pump, timming chain, chain tensioner, and all seals and gaskets. The only issue i have i don't have a lift. is it possible to remove the pickup tube bolt, with a box wrench, form the top of the engine compartment? I've seen people use a combination of box wrenches, needle nose pliers, and magnets. The only issue is that everyone on youtube has a lift. Can this be realistically done without a lift, in a short period of time (as in a day, two at most before my apt tows my derelict truck)?
 
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Joined
Apr 1, 2020
Messages
2,631
Location
Pacific Northwest
Oh, man, that's tough. You could do it on jack stands but I would hesitate to try to do it in an apartment on the sly. The chances of running into a problem that delays completing the job seems pretty good.
 
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