When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hey guys, I have a 1989 Ford F-150 XLT Lariat with the 5.8 351 Windsor Fuel-Injected engine it. I was driving it today around the city and on the highway for a good hour. The oil pressure gauge was right at the beginning of the "Normal" section, but gradually as the more I drove went right below the "Normal" section. I was just wanting to know, or if you guys knew if this is something I should worry about, or is it normal? Should I replace the oil pressure sender/switch, or do you think the oil pump is going. It only has 169,980 miles on it. Please let me know guys! Thanks!
I would install an aftermarket gauge,from what I understand the stock oil pressure gauges on the dash are just dummy lights,like as long as you have like 6 pounds of pressure they'll read normal.
Do you know what would cause the truck to idle around 1,500-1,800 RPM's in park at times then fluctuate between 1000-800 RPM's and at other times idle normal? Could this be the fuel pressure regulator? If it helps any, sometimes I try to start and it acts like it has a weak battery. If you wait 15 minutes it will start right up, or you can hook a pair of jumper cables to it and it will fire right up? I don't understand it and what is causing it.
So I have a 96 with a 351. My oil pressure gauge always reads right in the middle of the gauge right at the r in normal. You said that as long as the gauge reads 6 pounds it says normal right? So an aftermarket pressure gauge would fix this?
That's what I've have heard about them. An aftermarket gauge will tell you the real oil pressure instead of just normal.It won't change the one on your cluster.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.