Question about 1997 GMC Yukon

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How to change injectors on 97 yukon. the number 4 cylinder is misfiring and need to know how to change the individual cylinder injector

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Look for the intake maningful find the the gas line that should be along with it it could be black or
chrome color ,i has afew screw tiening it in loose them off and you will be able to ritch the injectors.remenber every is defernt so this advice should be close.good luck.other wise i will need more details about your car. good luck

Posted on May 20, 2011

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Posted on Jan 02, 2017

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I have a misfire # 4 cylinder on a 97 Nisson Altima 2.4. Did complete tune up, has spark, good compression, swap #1 and #4 injector, problem stayed at #4, p0304. I read that intake could cause this but...


Did you check the coil pack to that cylinder? The best way I know how to check an individual cylinder getting fire is by using a induction timing light tester..start the engine then clamp the tester over the plug wire and point at a surface that will clearly show the flash of the light when the wire has power going to the plug..if you see an intermittent flash it is the coilpak...give it a try..a good luck..

Mar 02, 2015 | Nissan Altima Cars & Trucks

1 Answer

Misfire in number 3 and number 4 cylinders


Misfire is not always from coil. It could be from spark pug wire and injector.
Solution:
-Test the injector at the misfire cylinder. Is it within specification...?
No.>>> The injector is bad. Replace new one.
Yes. the injectors are good and within its specification.
-Check the plug wire. it might be broken and spark to ground or too much resistant. If so replace it.

Mai Lor

Feb 24, 2013 | 2005 Ford Taurus

1 Answer

My 1998 plymouth neon has a number 4 cylinder misfire. changed plugs, wires, coil pack. still misfires. does it at slow speeds and really bad when trying to get up to speed when entering the highway....


CHECK FUEL INJECTOR WIRING TO NUMBER 4 INJECTOR,HOOK A TEST LIGHT TO MAKE SURE IT BLINKS WHILE ENGINE RUNNING.THAT WAY YOU WILL KNOW IF PCM FIRING THE FUEL INJECTOR OR FAULT AT THE INJECTOR WIRING OR YOU HAVE INTAKE LEAK LOW COMPRESSION TO THAT CYLINDER BECAUSE OF BAD BURNED OUT VALVE.COMPRESSION TEST TO THAT CYLINDER CAN ALSO HELP.LOOK FOR LOOSE OR WORN DAMAGE ROCKER ARMS IF YOU HAVE A SOHC SINGLE OVER HEAD CAM ENGINE.

Apr 12, 2011 | 1998 Dodge Neon

1 Answer

Misfire cylinder 6... 4.0L jag s type 2000


MISFIRE ON CYLINDER 6 COULD BE FAULTY SPARK PLUG OR BAD IGNITION COIL OVER THE SPARK PLUG,YOU COULD HAVE HAVE CLOGGED FUEL INJECTOR.CLEAN ALL FUEL INJECTORS USING A CAN OF SEAFOAM TO 3/4 TO FULL TANK OF GAS SEE IF NUMBER 6 MISFIRE CLEAR UP, IF NOT COIL OR FUEL INJECTOR COULD BE AT FAULT.ALSO CHANGE 6 SPARK PLUG FIRST.BEFORE BUYING NEW COIL OR FUEL INJECTOR THAT WAY YOU KNOW PLUG NOT THE PROBLEM.

Apr 11, 2011 | 2000 Jaguar S-Type

2 Answers

My 2003 yukon its 5.3L it has a misfire in cylinder 6 only, u can feel it only on idle, i replaced plus, wire, coils, and they did a compression test for that cylinder it as good and no one can figure out...


First of all, how was it determined that there is a misfire in cylinder 6? Was there a fault code?
If it is indeed a misfire, there are two things left, the injector or the intake valve. Try swapping #6 injector with another and see if the problem moves. If it is not the injector, then the valve train will need to be looked at.

Feb 03, 2011 | 2003 GMC Yukon Denali

1 Answer

Motor running rough. Missing. What are some common problems with the motor?


You could have a faulty fuel injector, a bad spark plug or wire or even a bad coil. The 3.1 liters are notorious for having bad fuel injectors If there is a check engine light then you can get the code and find out which cylinder is misfiring then go from there. Or you could get the vehicle to misfire then pull of each individual injector wire to see which cylinder is misfiring, you will know which one is misfiring because when you disconnect the wire you will not feel any change at all. If you unplug one of the injectors to a cylinder that is not misfiring it will misfire much more.

Dec 22, 2010 | 1999 Pontiac Grand Prix

1 Answer

I hava jeep 97 jeep grand cherokee laredo203,000 miles problem is i gotta misfire that i cant get rid of replaced spark plugs,distributor cap and button cleaned fuel injectionand it keeps coming back what...


What is the misfire code?

If it is a specific cylinder try swapping the injector with another cylinder. If the misfire follows the injector to the other cylinder than you know the injector is bad. If it doesn't follow than I would be checking compression on that cylinder.

Oct 27, 2010 | 1997 Jeep Grand Cherokee

1 Answer

I have 1996 Dodge Gran Caravan, and it gives me these codes: 27 and 43, what do they mean??


CODE 27 - Injector Control Circuit, output driver does not respond properly to the control signal

Code 27 MIL light options: OBDII
P0201 - Injector #1 Control Circuit
P0202 - Injector #2 Control Circuit
P0203 - Injector #3 Control Circuit
P0204 - Injector #4 Control Circuit
P0205 - Injector #5 Control Circuit
P0206 - Injector #6 Control Circuit

CODE 43 - Cylinder Misfire, or Ignition Primary Circuit

CODE $# MIL options: OBDII
P0300 - Multiple Cylinder Misfire
P0301 - Cylinder #1 Misfire
P0302 - Cylinder #2 Misfire
P0303 - Cylinder #3 Misfire
P0304 - Cylinder #4 Misfire
P0305 - Cylinder #5 Misfire
P0306 - Cylinder #6 Misfire
P0351 - Ignition Coil #1 Primary Circuit
P0352 - Ignition Coil #2 Primary Circuit
P0353 - Ignition Coil #3 Primary Circuit

Feb 03, 2010 | 1996 Dodge Caravan

3 Answers

Pontiac Grand Am 97'


if it is a 4cyl probably a bad coil cover

Aug 21, 2008 | 1997 Pontiac Grand Am

2 Answers

#4 cyl misfires/code 304


P-0304 indicates number 4 cylinder misfire. Are you using Toyota parts dept spark plugs? More often than not, non-toyota plugs make the v-6s run poor, right out of the box....
Try this:With the engine running, pull the connector wire off of the #4 injector. Note to see if there is any change with the idle quality. No change? You may have a bad injector.

Aug 12, 2008 | 1997 Toyota Tacoma

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