Tuneup

20

Asked by Dec 24, 2015 at 03:49 PM about the 1996 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

I just bought a 20 year old Deville with 130000 miles on it, and my mechanic did
a tune up without replacing the plug coils (or whatever they are called). He did
the plugs, wires, engine air filter and gas filter, Shouldn't he have dome the coils
as well? The gas filter looked like it was in there for 20 years, so I am sure the
previous owner didn't do much as far as maintenance. Thanks in advance.

6 Answers

20

There is no way to corect a typo here once you post your question...clearly I mean to say "done" the coils, not "dome". Sorry for the typo.

1 people found this helpful.

Actually if you want to go to the trouble to correct typos, copy your post then delete it. Paste it back and correct typos then re-post. But we can read through typos, it happens all the time. But that being covered, if the coils are good there is no need to replace them unless you specifically tell the mechanic that you want them replaced. It's just more cost. If it ain't broke don't fix it. Merry Christmas

3 people found this helpful.
20

So how do i know if they are good, the car is 20 years old. What is the scehduled interval for replacement? Thank you.

1 people found this helpful.
79,045

There is no scheduled replacement interval for the coil packs. They're not replaced with a tune up. These engines only need tune ups every 100,000 miles. My '03 S-10 Pick Up has 287,000 miles on the original coil packs. However, once one fails it's best, in my opinion to replace all 4. If one goes, the others are soon to follow. On another topic, I hate to rain on your parade, but do you know if the head gaskets have been done? All Northstar engines blow head gaskets. At 130,000 miles you're on borrowed time. When the head gaskets blow it's a $3500+ repair! For starters the engine and transmission must be removed from the bottom of the car. You can't just remove the heads from the top. HTH. -Jim

1 people found this helpful.
79,045

If a coil pack fails you'll get a misfire that will trigger the check engine light. HTH. -Jim

1 people found this helpful.

You said ALL Northstar Engines blow head gaskets? Is it cheaper to service them before they are 'Blown'?

Your Answer:

DeVille

Looking for a Used DeVille in your area?

CarGurus has 1,250 nationwide DeVille listings starting at $1,500.

ZIP:

Cadillac DeVille Experts

  • #1
    kikero
    Reputation
    2,310
  • #2
    Js08016
    Reputation
    2,060
  • #3
    Cynthiasmith
    Reputation
    1,840
View All

Related Models For Sale

Used Cadillac Eldorado
293 listings starting at $2,995
Used Cadillac Seville
245 listings starting at $1,495
Used Chevrolet Impala
448 Great Deals out of 25,776 listings starting at $950
Used Lincoln Town Car
28 Great Deals out of 1,459 listings starting at $1,469
Used Ford Mustang
273 Great Deals out of 37,795 listings starting at $1,350
Used Chevrolet Camaro
232 Great Deals out of 27,541 listings starting at $2,800
Used Chevrolet Corvette
83 Great Deals out of 15,126 listings starting at $3,620

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.