0
How do you replace spark plugs on a 1998 Cadillac Eldorado with North Star?
Wiki User
∙ 15y ago
Under the hood you will see a metal bar running across back of the engine it is attached above either strut cover with 2 bolts, remove this bar. Now pick a cylinder and remove the spark plug wire boot by giving it a quarter twist to the left and pull it out. Next use a spark plug wrench with a 8 inch extension to remove to old plugs. They may be in there pretty tight because they do not require change until 100,000 miles so they have a long time to cook in there. Apply spark plug grease to threads and screw the new one in use the spark plug boot to start the plug in because this is an aluminum block and you can accidentally cross thread the plug. With the plug started use the plug wrench on a torque wrench and tighten the plug to 21 ft/lbs. Now reconnect the boot and move to the next plug until you finish the front four plugs. Now the back four are little more difficult remember the bar you removed look behind it. There should be four black boxes sitting side by side on a aluminum rail these are your coil packs you can see this is where all the wires from your plugs end up. Behind the coil packs are the other four plug boots lined up just like in the front. Do these just like the front you can use a longer extension on your wrench or remove the coil packs to access them easier. Reinstall the metal bar then your done!
A few extra pointers your should change the wires at the same time you change the plugs. Also check your coil packs and remember to always keep track of what wires are going where this is why you do it one by one to avoid confusion.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Where are the back 4 spark plugs on a 1994 Cadillac eldorado?
You have to take coil packs off and then they are easier to get to. You will see the wires going to the plugs.
How do you REmove and replace spark plugs 2004 Cadillac Seville Sls with 4.6 v8 enging?
How to Replace spark plugs on 2004 cadillac deville Sls with 4.6 v8 engine
How much is it to replace freeze plugs on a 1991 cadillac sedan deville?
Around $500.
How to replace the spark plugs on 93 cadillac deville 4.9 liter?
spark plug replacement on a 93 Cadillac DeVille 4.9 liter
Diagram of 1999 catera spark plug replacement?
How do I replace the spark plugs in a 1999 Cadillac Catera?
What is the spark plug gap for Cadillac Eldorado 1976?
First check the emissions label under the hood at the front of the car near the fan shroud. There is a large label telling you important information about your car. The gap for a 1976 Cadillac Eldorado with a 500 ci engine is .060 in. make sure to buy good quality AC Delco plugs and torque them to 25 foot pounds.
How do you remove the headlight switch 1988 caddy eldoroado?
In order to remove the headlight switch of a 1988 Cadillac Eldorado, you must first disconnect the negative cable from the battery and allow time for the capacitors to discharge. Unscrew the headlight switch, remove the wire plugs, and remove the switch itself. Insert a new switch and replace the wire plugs and screws. Reconnect the negative cable and test the new switch.
How do you change spark plugs on 2003 Cadillac deville 4.6 liter north star engine?
Dealer service item.
How do you replace a flasher on a 1995 Cadillac DeVille?
The turn signal is under the dash on the drivers side. It is just to the left of the steering column and plugs in.
Where are the spark plugs on a 1995 Cadillac eldorado?
The Eldorado of 1995 contains a Northstar transverse (sideways) mounted V-8 engine. The spark plugs on the forward bank of cylinders are right in front of you when you lift the hood. Look for four black wires coming out from under the engine shield and going down in to four litte holes on the camshaft covers. The rear bank are a little harder to get to, but they're back there, on the opposite side of the engine.
How do you replace spark plugs 1994 Cadillac Brougham?
I learned the hard way on my 91 to take the wheel off and replace them through the wheel well. Not sure if 94s the same worth a shot.
How do you install Spark Plugs and wires on a 1994 Cadillac Deville Concours?
How can I change the wiring and spark plugs on my 1996 Cadillac Sedan Deville Concours?
