low oil pressure
Thread Starter
|
Tuned
Joined: Aug 2002
Posts: 299
Likes: 2
low oil pressure
Hi guys, I have a 1994 F150 4x2 with a 302 motor. my oil pressure gauge(idiot light) has always been around the N or O of normal. this week while driving to do my student teaching it dropped to below the N and for several days now it hovers right below the N while driving down the road. I drive to go student teach about 80 miles a day so it kinda worried me. I use 10-30W Mobile 1 synthetic oil and have used this since I got that truck with 98,000 miles on it. The truck now has about 166,000. The oil guage somtimes doesn't even register till I'm going down the road for 5 minutes. then it will all of a sudden work and go to below the just below the N. I searched this topic but I just didn't know if it matters since I'm running synthetic. By the way i put a quart of Lucas in my oil when I do my oil change. Think its just the Idiot gauge being junk, or what/???
Elder User
Joined: Sep 2007
Posts: 624
Likes: 0
From: Kalamazoo, MI
Originally Posted by Animalistic
Pick up a cheap manual guage and screw it in the sending unit hole. This will tell you for sure. If your engine is not knocking, then most likely it is either the sending unit or the guage.
I've had my test gauge for years... decades even..
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
Trending Topics
Elder User
Joined: Dec 2006
Posts: 550
Likes: 1
From: Hillsboro, OR
Originally Posted by badass truck
seems to be running fine as usual. even got 19.5 mpg on it yesterday lol. but yeah that would suck if i damaged the motor.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Thread Starter
|
Tuned
Joined: Aug 2002
Posts: 299
Likes: 2
Yeah, I am having a new sending unit put in on Saturday. My oil pressure actually came back up to the O or Normal and that kinda rules out the oil pump to me since it fluctuated. gonna prob get an aftermarket gauge if i can find a descent place to mount it
Thread Starter
|
Tuned
Joined: Aug 2002
Posts: 299
Likes: 2
Yeah, my mechanic here at school is gonna check it on saturday with a real gauge and then if its real low hes gonna replace the sending unit. He believes that since the pressure came back up on the dumby gauge for awhile that its either the gauge of the sending unit. idk how the pump could work better somedays than others you know??