Question about 1998 GMC Jimmy

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I have a 98 gmc jimmy and 2 cylinder r not fireing and have already tried plugs wires cap rotor

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Any chance that the wires on the two non firing cylinders are reversed?

Posted on Nov 20, 2009

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1998 gmc jimmy 6cylinder 4.3 4x4 no fuel and


If you changed your plugs, etc. and know that you are getting a good spark then it's really only 2 other things to check. The compression in that cylinder and the fuel. Check fuel pressure with gauge hooked up to Schrader valve on fuel line next to your distributor ( it has a black threaded cap on it). If pressure is good then you have either a dirty or clogged fuel injector or the injector quit working. Let me know what you find. Anytime you get a misfire in a particular cylinder, you should always check for spark, fuel and compression.

Sep 17, 2014 | 1998 GMC Jimmy

1 Answer

4.3 running rough after tune up


THE FIRING ORDER MOST LIKELY IS WRONG,UNLESS U CRACKED THE IGNITION ROTOR WHEN INSTALLING

Sep 12, 2012 | 1999 GMC Jimmy

1 Answer

I have a 98 honda accord 5 spd it has a 4cyl motor vtech i just need to know how to fix a miss fire in cylinder 2 and wich one is cylinder 2


Cylinder #2 is the the second spark plug counting from the right to left.
EX.Below are spark plug on engine
engine
-------------------------------
' (oil cap) '
' (4) (3) (2) (1) '
'_________________'

Your misfire can be cause by couple of things but the cheapest way that you can try to fix your car is to do a tune up by replacing:
1)all spark plugs
2)do a oil change
3)spark plug wires
3)distributor cap and rotor

note misfire can be cause by:
1.bad gas
2.spark plug and/or wire
3.distributor cap and/or rotor
4.valve adjustment
5.injector
6.off timing
7.ECM
8.bad wiring(power, ground or feed line)

Jul 08, 2011 | 1998 Honda Accord

4 Answers

SPARK AT COIL WIRE BUT NOT AT PLUGS


without looking at it i can only guess. Sounds like you need a new distributor cap and rotor arm. Hope this helps...

Mar 04, 2011 | 1989 GMC S-15 Jimmy

2 Answers

I have a 2000 gmc jimmy with a service engine soon light. i received the code p0302 misfire detected cylinder 2.I replaced spark plugs and distributor cap and rotor. but still on. any other suggestion?


Well, Spark Plugs wear over time,seldom fail to fire
A worn or dirty rotor and cap will still fire, also

You never throw new wires at it,I don't,mine last 18 years,
on all vehicles

You need some OBD2 knowledge,start studying

The PO302,last # is the cylinder
Number 2 is misfiring

If you got individual coils, go there
If you got an ignition module, for all the cyl,go there
If you got plug wires,there is an extremely odd chance, one burned out inside ,on #2
& you did say your have a dist cap.

So you do have a cylinder monitor,that detected it
That may be the crank sensor,another possible

Need to know the system and how to test it.

You need to give veh specifics ,not just a year

Dec 01, 2010 | 2000 GMC Jimmy

1 Answer

HAVE A 1996 GMC JIMMY 4.3 NUMBER 1 PLUG IS NOT GETTING ANY FIRE TO IT .I CHANGED PLUGS ,PLUG WIRES , DISTRIBUTER CAP AND ROTOR BUTTON SO WHAT COULD BE MY PROBLEM?


it does not mean new parts are alway good. subtitive a known good wire and check for spark at the wire, if there is spark then check the plug.
if there is no spark then go back to your cap.

Mar 16, 2010 | 1996 GMC Jimmy

2 Answers

Number 2 spark plug


Are you sure it's the spark plug that's faulty or the ignition wire?? How old are plugs and wires?
If you don't know if it's your spark plug not firing or your ignition wire you could move spark plug to number 1 then check your code reader.
Or you could do an ohms continuity test on your number 2 ignition wire to verify that there is no break in the wire. Common problem to check for. If wires and plugs are old and high mileage maybe should change all including cap and rotor on distributor. Fresh wires plugs cap and rotor always improve mileage and performance.
Good luck, sorry can't help with tranny.

Dec 10, 2009 | 1998 GMC Jimmy

1 Answer

97 jimmy wont start


Check for a bad distributor cap and or rotor..........a bad cap and or rotor can caues firing (cross fire)across the terminals and introduce spark to the wrong cylinders at the wrong time.......
hope this helps.....good luck!

Dec 14, 2008 | 1997 GMC Jimmy

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