Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Oil drip inside cab?

Thread Tools
 
Search this Thread
 
Old Nov 28, 2021 | 10:21 PM
  #1  
TNRealtor79's Avatar
TNRealtor79
Thread Starter
|
New User
Joined: Nov 2021
Posts: 10
Likes: 2
Oil drip inside cab?

Hey guys! I have noticed a strange oil looking drip inside the cab of my 79. I have not traced under the dash yet to see if the oil pressure line for the gauge runs toward the passenger side? That is where this drip is located. Thanks for any advice!

Other project going once hunting season slows down is front inner axle seals. I have gear oil pouring out of the tube at the passenger side u-joint.

 
Reply
Old Nov 28, 2021 | 10:44 PM
  #2  
77&79F250's Avatar
77&79F250
Moderator & parts slinger
Veteran: Army
15 Year Member
Community Builder
Liked
Joined: Feb 2007
Posts: 50,251
Likes: 5,815
From: S/W Missouri, Polk county
Club FTE Gold Member
Your stock oil pressure sending unit is elec, if you have a aftermarket oil pressure gauge (and the line is the common plastic one), you can get a leak easy enough. They make a copper line kit to replace the plastic one. Normally there is NO oil line over there or inside the cab in a stock set up. Now there is a heater core right above that leak and if is looked and smelt like antifreeze, heater core replacement time.

As far as the front axel seal, there is no axle "end" seal to replace. You have to get inside the axle and you have to pull the internals out to replace it. Walk thru and pics right here.
https://www.pavementsucks.com/thread...ement.1060708/
 
Reply
Old Nov 28, 2021 | 11:02 PM
  #3  
TNRealtor79's Avatar
TNRealtor79
Thread Starter
|
New User
Joined: Nov 2021
Posts: 10
Likes: 2
Thanks a ton for that link! It will be helpful.

I will do more investigating in my cab drip and post it here when I find the source.
 
Reply
Old Nov 29, 2021 | 12:17 AM
  #4  
tbear853's Avatar
tbear853
Hotshot
20 Year Member
Shutterbug
Loved
Community Favorite
Joined: Feb 2004
Posts: 10,842
Likes: 2,612
From: The Shenandoah Valley
Plastic can easily be over tightened and leak at a fitting. Copper can work harden and crack developing a leak. Both need protection going through sheet metal. My '67 Chevelle once leaked oil from the OEM mechanical gauge connector end, was plastic tube OEM, found spots on new boots one night.
 
Reply
Old Nov 29, 2021 | 01:11 AM
  #5  
Christmas's Avatar
Christmas
Logistics Pro
5 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2018
Posts: 3,554
Likes: 442
Why would you ask for advice that you have'nt tried to figure out for yourself. Welcome to FTE we have plenty of help here, but it requires the PO to be able to do something about it.
 
Reply
Old Nov 29, 2021 | 12:43 PM
  #6  
68Flareside240's Avatar
68Flareside240
More Turbo
5 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2020
Posts: 633
Likes: 84
From: AL
We learned our lesson with the Poly oil pressure line the hard way. Almost burned our 72 Duster 340 up. Ruptured in the engine bay spraying hot oil on hot headers going through the beams at the top end. Always keep a fire extinguisher in these old gems.
 
Reply
Old Nov 29, 2021 | 01:29 PM
  #7  
Peter Gozintite's Avatar
Peter Gozintite
Mountain Pass
5 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2017
Posts: 180
Likes: 84
From: Las Vegas
Originally Posted by 77&79F250
You stock oil pressure sending unit is elec, if you have a aftermarket oil pressure gauge (and the line is the common plastic one), you can get a leak easy enough. They make a copper line kit to replace the plastic one. Normally there is NO oil line over there or inside the cab in a stock set up. Now there is a heater core right above that leak and if is looked and smelt like antifreeze, heater core replacement time.

As far as the front axel seal, there is no axle "end" seal to replace. You have to get inside the axle and you have to pull the internals out to replace it. Walk thru and pics right here.
https://www.pavementsucks.com/thread...ement.1060708/
I was thinking heater core too.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
daforde
1987 - 1996 F150 & Larger F-Series Trucks
4
Jan 21, 2016 07:17 PM
tw65f250cs
1961 - 1966 F-100 & Larger F-Series Trucks
9
Jul 19, 2013 01:36 PM
gt4660
1987 - 1996 F150 & Larger F-Series Trucks
11
Jan 10, 2011 08:52 AM
John Kiernan
6.0L Power Stroke Diesel
2
Mar 14, 2008 06:29 PM
fordtrucks15
Ford Inline Six, 200, 250, 4.9L / 300
6
Sep 12, 2003 11:13 PM




All times are GMT -5. The time now is 08:05 AM.

story-0
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.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
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.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE