Question about 2002 GMC Envoy

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How to start to change the fuel injector - 2002 GMC Envoy

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Remove plug (elec) then bolt pulls right out

Posted on May 27, 2011

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97 mpv cold start fuel injector location


If it is a diesel then the cold start injector will be in the manifold . There will be a pipe connected to it and a wire as the injector normally squirts on a hot element which creates a fire that is drawn into the combustion chambers.. Check that the element is operational. If petrol then run the fault codes to find out the problem. I would be having a pressure test done on the fuel manifold to check the pressure regulator and pump operation

Feb 20, 2014 | Cars & Trucks

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Got 93 blazer wont start fuel injected if you primer first it starts then dies out all sensers fuel pump injectors turantula eeverythings been changed all most fuel goes to turantula but wont go through...


Try changing out the crank position sensor if this sensor is bad it doesnt send the signal to the computer telling it you are trying to start the engine and the computer controls fuel flow at the injectors if it doesnt recieve this signal from the crank position sensor you will never get it started good luck and let me know if this fixed your problem thanks.

Feb 09, 2011 | 1993 Chevrolet S-10 Blazer

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CODES-PO301-PO303-PO316- CHANGED PLUGS & WIRES. STILL MISS ON START UP, GOES AWAY MOST OF THE TIME ABOVE 1000 R.P.M


P0301 - Cylinder 1 Misfire Detected.

Causes:
- Improper spark plug at cylinder #1
- Insufficient compression at cylinder #1
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #1
- Fuel injector #1 may be faulty
- Intake air leak

Solutions:
- Perform Injector Service
- Replaced Spark Plug #1
- Replaced Injector #1
- Replaced Ignition Coil #1

P0303 - Cylinder 3 Misfire Detected.
Follow info from P0301.

P0316 - Misfire Occurred In The First 1,000 Engine Revolutions.

Causes:
- Damaged CKP sensor.
- Ignition System.
- Fuel Injectors
- Running out of fuel
- Fuel Quality
- Base engine
- Damaged Powertrain Control Module

Solutions:
Usually the P0316 is combine with a P03XX codes. The P03XX code indicates in which cylinder the misfire occurred.

Jan 17, 2011 | 2002 Mercury Sable

1 Answer

The car starts but runs rough like its not running on all the cylinders changed the plugs and wires doing the same thing


Did you check or change the ignition coil or coils? You could have dirty fuel injector or injectors. Change the fuel filter and try putting some STP Super Concentrated Fuel Injector Cleaner in your fuel tank and see what happens.

Jun 04, 2010 | 1992 Nissan NX

1 Answer

Changing a fuel injector on a Toyota Carina 1996 1800, anyone have an idea how to change before I start?


Disconnect the wiring plugs from the injectors, Then remove the fuel rail (which is attached to injectors). Then remove injectors from the fuel rail. Don`t forget to change the "O-rings", (little rubber things on the end of each injectors). Otherwise there`s a possibility of fuel leak.
Also I suggest trying to clean the faulty injector at first, It might be ok, just dirty inside.
How to clean: Use injector cleaning fluid on the end of the head of the injector. Attach minus and plus to the contacts of the injector to battery of the car or any other energy source, and start pulling the negative wire on the battery on and off. You should hear clicking sound in the injector. Use the fluid and this "technique" for couple minutes or more, until the injector starts spitting the cleaning fluid evenly, not rarely. If still the injector doesn`t spit the fluid, you might need to change it.


Hope this helps, sorry for my english. I`m a lithuanian

Feb 16, 2010 | 1996 Toyota Camry

2 Answers

Help w 1994 chevrolet truck


This injector set-up needs a specific fuel pressure supplied to the fuel rail to even start, much less run properly. The fuel pump is immersed in fuel inside the gas tank to keep it cool and not burn up. Running the fuel level low causes more heat in the pump and interuptions in proper fuel pressure. AC/Delco pumps have proven to be a reliable fix, the aftermarket pumps only last for a month or two sometimes. Check fuel pressure under the hood and power and ground to fuel pump at electrical harness at top of gas tank. This truck needs a fuel pump.

Aug 18, 2008 | 1994 Chevrolet C1500

1 Answer

Truck wont start


check the injector relay and the injector fuse if they are good you might want to make sure the computer was programed right. and check to see if the injectors are getting a signal from the ecu

Jul 07, 2008 | 1989 Chevrolet K1500

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