96 CADI TURNING OVER BUT WILL NOT FIRE

Question edited for clarity, "spark puck", you mean 'spark PLUG'.
Question moved to model category.

ANSWERED: ignition firing order (Cadillac DeVille) - CarGurus

https://www.cargurus.ca > Discussion-t3819_ds876001
2 answers
The Cadillac Northstar engine firing order is: 1-2-7-3-4-5-6-8. Standing in front of the hood of the car, the front bank, the one closer to you will be from ...

A hunt and count question. core/freezed plug.
NO VIN told no RPO code for engine told.
8th digit of VIN is ENGINE CODE VIN :"Y" below.
or vin=9 (8TH)
well even the service manual does not do the count.
it shows some, block and heads.
what you can learn to do is google it.
here is how to do that
I google new rebuilt raw engine blocks for sale.
watch out engine can evolve and even be swapped a newer GEN engine, 279 cu in (4.6 L)
but I will post for DAY new,1996 only
1996, the Northstar engine
RPO code LD8 or L37
lets to LD8
the DeVille Concours was available with the new 270 hp (201 kW) LD8 Northstar V8, and later, the high-output L37 Northstar generating 300 hp (220 kW).
LD8
first hit shows VIN-=Y shows 4 in the 2 heads 2x2.=4
left and right heads outside ends. and 1 rear and front of head for 6 total,

https://www.npdengines.com/product-page/96-99-cadillac-deville-4-6-northstar-engine-vin-y

found with google
die-cast aluminum block!!! SORRY NOT SAND CAST.

A GOOD TECH FINDS THE ACTUAL LEAK FIRST
SEEMS YOU ARE GUESSING,
THE 1995 BACK IS ALL DIFFERENT.

LOTS OF VIEW HERE, ALL FOUND VIA GOOGLING FOR YOU.

https://www.hpmotors.com/cadillac-northstar-v8.html

FIND THE LEAK FIRST, THEN WORRY CORE PLUGS IF AT ALL.

Michelle,

The 1997 V8 engine in the car is fitted with coil packs which are quite visible on the top of the engine. These need to be replaced when they eventually fail as is common.
Here is a video on the coils which may help you.................

How To Install Replace Ignition Coil 96 99 Cadillac Deville Northstar 4 6L...

Try to flush and fill with new fluid to get the passageways free of sediment.

Or, try to see if the fans are coming on at the right speed at operating temperature. May require new fans/relays/wiring to fix this problem.

I have a 1997 Cadillac Deville that was overheating its Northstar engine and it required service amounting to about $700.00 or so from an auto electric shop, but afterwards it ran cooler.

Good luck on this repair.

Do you have the 4.9L engine or do you have the 4.6L Northstar engine?

Assuming you have the Northstar engine

I'm not sure if the Northstar has it anywhere. Just for your info though, the firing order is as follows:
1-2-7-3-4-5-6-8




Fig. 4.6L (VIN 9 and Y) Engines Firing order: 1- 2- 7- 3- 4- 5- 6- 8 Distributorless ignition system


Hope helped (remember rated this help) Good luck.

This should be the firing order;
2004 Northstar RWD/AWD 4.6L V8 (LH2) ... Firing Order: 1-2-7-3-4-5-6-8
Please be sure that when you list your questions on auto's be more precise on info provided. Sometimes listing the Vin Engine number helps to to locate info. Good Luck!

Yes you can. 2000 Cadillac should have a northstar already in it.

Your engine is a 4.6 liter 281 CID V8.

There are thermostat rated for 180f or 195f for your engine,

I will select a 195f thermostat with a pressure relief poppet/valve to protect the coolant hoses.