Oil leaks

Asked by Mar 17, 2013 at 07:38 PM

Question type: Maintenance & Repair

My 1977 Cadillac deville with a 425
engine have a oil leak but I don't
know ware its coming from how
much will it cost to find out ware its
coming from and fix or to fix
everything that got something to do
with a oil leak and ware do I take it
to in Lynchburg Virginia

2 Answers

what you have to do is go to an outdoor old-fashioned car wash that isn't hostile towards engine cleaning. With a can of foamy engine brite spray down your motor. Be sure to be packin' a can of WD-40 before you start. set the machine to HOT wash and spray all the greasy undercarriage clean you've brought your floorjack so you can get up under there. select high pressure rinse and try to avoid electrical areas, but de-grease the entire under-engine. After you turn the key and it won't start, break out the WD-40 and douse the high voltage parts, the wires, coil and ecu box. give 'er a crank and park in a place that you can dry off with the hood open in the hot sun. leave the motor running, grab a flashlight and begin inspecting the head, the waterpump and any place where the oil jacket may come into contact with the outside world. diagnosis complete, take note of where it's leaking.


I had a pair of 78 Eldorados with the 425 engines. A likely place for them to leak is along the lower. outside edge of the valve cover gasket. BTW I still have a new pair of valve covers around somewhere if you want to add some bling.

Your Answer

Add photo

Related Questions

  • oil leaks 3 answers

    can oil leaks be attributed to something wrong with the distributor ?

    1993 Toyota Celica


    Maintenance & Repair

  • oil leaks 1 answer

    I have replaced the valve gasket 3 times, cam seals and o-rings, gasket between trans and engine and I still have leaks. Now the plug on my oil pan is leaking badly. What can I do?

    2002 Mitsubishi Montero Sport ES


    Maintenance & Repair

  • Oil Leaks 1 answer

    I have copious oil leaks at various gaskets. I'm a novice at repairs, but willing to get my hands dirty. Is it realistic to think I can change out my head gaskets with "normal" tools and a not so gr...

    1990 Subaru Loyale 4 Dr STD Wagon


    Maintenance & Repair

  • Oil leaks 3 answers

    I Got a question I have a 03 grand marquis and when I hit my brakes oil leaks out from under the car, I wanna know what could it be?

    Maintenance & Repair

  • Oil leaks 1 answer

    My 1977 Cadillac deville with a 425 engine have a oil leak but I don't know ware its coming from how much will it cost to fix every thing that got something to do with a oil leak? And ware can I ...

    1977 Cadillac DeVille


    Maintenance & Repair


Search Maintenance & Repair Questions

Maintenance & Repair Experts

#1 Tom Demyan
Tom Demyan
Reputation 171,980
#2 dandyoun
Reputation 92,600
#3 tenspeed
Reputation 74,740
View All

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.