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Fuel injector location and replacement

Tiny
DAVID MATHEWS
  • MEMBER
  • 2002 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 170,000 MILES
Where is the fuel injector on 2002 Cadillac Deville, How hard to replace.
Wednesday, April 20th, 2011 AT 3:50 PM

7 Replies

Tiny
PROTECH1980
  • MEMBER
  • 901 POSTS
You have 8 injectors, and fuel rail removal is necessary for replacement here is a guide to help and, Check out the diagrams (Below) for your car.

https://www.2carpros.com/articles/how-to-replace-a-fuel-injector

Please let us know if you need anything else to get the problem fixed.
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Wednesday, April 20th, 2011 AT 9:29 PM
Tiny
RANSARG57
  • MEMBER
  • 4 POSTS
  • 2000 CADILLAC DEVILLE
  • 4.6L
  • V8
  • FWD
  • AUTOMATIC
  • 80,000 MILES
How to remove and replace fuel injection North Star engine?
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Thursday, April 4th, 2019 AT 1:56 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
To replace an injector, you need to disconnect the battery, release any pressure in the fuel system, remove the fuel rail, and the injector will then come off for you. NOTE: Each injector will have O-rings on them. Make sure they are in good condition and properly installed when you replace the unit.

Also, if this is the same person that questioned the number 2 misfire, I forgot to mention on your other post to check for an injector pulse to that cylinder.
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Thursday, April 4th, 2019 AT 1:56 PM (Merged)
Tiny
RANSARG57
  • MEMBER
  • 4 POSTS
How do I check for the firing pulse
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Thursday, April 4th, 2019 AT 1:56 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
To check for an injector pulse, disconnect the wiring from a specific injector and plug in a noid light to the power side of the wiring. As the engine cranks, the light should strobe on and off when the injector should be getting power.

A noid light is a very cheap light. Most parts stores will lend you one if needed.
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Thursday, April 4th, 2019 AT 1:56 PM (Merged)
Tiny
MARKRAN
  • MEMBER
  • 1 POST
  • 1994 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 115,000 MILES
Because of funds I must attempt to replace the injectors myself. The engine is a 4.9 v8. Please give me any advice and proceedures, do's and don'ts, so I may get through this without dissaster. Any illistrations would be greatly appreciated.
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Thursday, April 4th, 2019 AT 1:56 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello
Thanks for the donation

Replacement procedures for your vehicle's fuel injectors are below. If you get stuck during the repairs please feel free to ask me anything you need to get the repairs done properly and safely.


https://www.2carpros.com/forum/automotive_pictures/261618_1_24.jpg



https://www.2carpros.com/forum/automotive_pictures/261618_Noname_390.jpg



https://www.2carpros.com/forum/automotive_pictures/261618_Noname2_109.jpg



https://www.2carpros.com/forum/automotive_pictures/261618_Noname3_51.jpg



Thanks for using 2CarPros.com!
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Thursday, April 4th, 2019 AT 1:56 PM (Merged)

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