Repost 97 3000GT Still having same problems, Please Help

Tiny
BLACK3KBEAUTY97
  • MEMBER
  • 1997 MITSUBISHI 3000GT
  • 188,000 MILES
I have a 97 3000GT. It will run on all 6 cylinders but cylinder 3 spark plug has to be plugged in halfway for it to run. Seems like the spark weakens a lot when its all the way plugged. Prior to this incident, I unplugged two spark plug wires at the same time on accident to try and find a minor misfire. Here is a video of the problem, http://www.youtube.com/watch?v=0LYJMPXAP5w Someone try to help, its my daily driver and i need it fixed as soon as possible.
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Sunday, December 25th, 2011 AT 1:48 AM

15 Replies

Tiny
HMAC300
  • EXPERT
Replace your spark plugs and set to correct gap. When you pull the plug wirelike that and it smoths out the spark plug has soemthing stuck inbetween the elctrode or is bad. So replace them.
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Sunday, December 25th, 2011 AT 2:28 AM
Tiny
BLACK3KBEAUTY97
  • MEMBER
Ive even switched the plugs and it stills does it on that one cylinder. And the spark plug wires to still does it, and if it was outta time it would be more than one cylinder.
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Sunday, December 25th, 2011 AT 4:20 AM
Tiny
CJ MEDEVAC
  • EXPERT
RECKON YOU HAVE 'EM PLUGGED IN, IN IN THE WRONG FIRING ORDER?

MAYBE 2 OF 'EM SWAPPED?

THE MEDIC
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Sunday, December 25th, 2011 AT 5:29 AM
Tiny
HMAC300
  • EXPERT
If it still does it then check oru compression, that means pulling all the plugs out and cranking it like that to mesure compression. If there is a 20%variance then ou need to have the engine looked at. Aslo check the resistance int eh plug wires nothing more than 5000 ohms per foot.
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Sunday, December 25th, 2011 AT 5:22 PM
Tiny
BLACK3KBEAUTY97
  • MEMBER
Compression is good and the switched one spark plug with another and it still does it on that cylinder, and ive got new plug wires. This problem has gone on for about 5 months now and im still confused.
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Tuesday, January 3rd, 2012 AT 4:00 PM
Tiny
CJ MEDEVAC
  • EXPERT
THIS THING GOT 3 COILS?

WHAT ABOUT SWAPPING COILS W/ OTHER CYLINDERS TO SEE IF THE CYLINDER CHANGES?

OR OBTAINING A CHEAP AUTO SALVAGE YARD COIL AND SWAPPING IT INTO YOUR SYSTEM. BUY A NEW ONE IF THIS IS YOUR FIX

THE MEDIC
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Tuesday, January 3rd, 2012 AT 4:12 PM
Tiny
BLACK3KBEAUTY97
  • MEMBER
Has one coil for all the cylinders and I replaced it and still does it.
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Tuesday, January 3rd, 2012 AT 4:39 PM
Tiny
HMAC300
  • EXPERT
Ok after looking at themanual for the umpteethtime, you have a single overhead cam in that and it uses a distributor. Replace teh dist cap and rotor because your cap probably has carbon tracks and is shorting out that cylinder or firing on two cylinders at the same time. If you look on the inside or out side of the cap with a brightlight and magnifying glass you'll see what looks like aline either inside or outside the cap.
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Tuesday, January 3rd, 2012 AT 6:01 PM
Tiny
BLACK3KBEAUTY97
  • MEMBER
Ive replace the rotor, so ill try the distributor cap when I get the time, if its not the distributor cap what would be the likely cause
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Tuesday, January 3rd, 2012 AT 6:51 PM
Tiny
CJ MEDEVAC
  • EXPERT
GOOD ADVICE!!!!

I GUESS I TAKE IT FOR GRANTED THAT PEOPLE KEEP UP WITH THEIR SCHEDULED MAINTENANCE

I'M ONE TO GO OVERBOARD AND DO THINGS MORE OFTEN THAN SUGGESTED

...............BEFORE A GLITCH OCCURS

I REALLY TRY TO COVER ALL BASES A LOT OF THE TIME (THAT'S WHY MY ANSWERING SOMETIMES LOOKS LIKE A NOVEL)

SORTA PREVENTATIVE-PREVENTATIVE MAINTENANCE I GUESS, BOTH OF MY JEEPS, "MR. JEEP" AND "WILLY" ARE LONG TIME, DIE FOR EACH OTHER BUDDIES (I'VE SEEN BOTH COMPLETELY NAKED!)

THE ESCAPE AND THE NEON, "WE'RE JUST TALKIN'" IS THE MODERN TERM FOR OUR RELATIONSHIP!

SEE MY ANSWER AT THIS POST

http://www.2carpros.com/questions/2000-ford-taurus-wondering-car-shakes-about-10-15-minutes-start-morning

I HOPE THE SIMPLE, MAYBE OVERLOOKED, ANSWER hmac300 GAVE YOU IS YOUR FIX!

KEEP US POSTED

THE MEDIC
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Tuesday, January 3rd, 2012 AT 7:11 PM
Tiny
BLACK3KBEAUTY97
  • MEMBER
Other than the distributor cap what else could be the problem
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Wednesday, January 4th, 2012 AT 11:49 PM
Tiny
HMAC300
  • EXPERT
Did you replace the cap? Check to make sure teh firing order is correct. It cold also be a piece of junk inbetween teh spark plug, where the gap usually is.
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Thursday, January 5th, 2012 AT 12:23 AM
Tiny
CJ MEDEVAC
  • EXPERT
FIRING ORDER IS A GOOD POINT--SOMETIME WE ASSUME TOO MUCH

EVEN IF YOU DIDN'T MESS WITH IT. YOUR EVER SO HELPFUL BUDDY TRYING TO HELP, COULD HAVE

DO YOU UNDERSTAND THE WAY FIRING ORDER WORKS?

DO YOU UNDERSTAND WHERE #1 PLUG WIRE GOES AND WHY?----IT IS CRITICAL----IT'S THE STARTING POINT (IMMA JEEP GUY, I DON'T KNOW WHICH WAY YOUR BUTTON ROTATES, CW OR CCW) WHICHEVER, THAT'S THE WAY THE SEQUENCE GOES ALSO

ARE YOU ABLE TO CORRECTLY CHECK OR PUT THE WIRES ON THE CAP IN THE SEQUENCE THEY GO

IF YOU ARE LOST ON THIS---WE CAN STILL GET YOU THRU IT

PLEASE ANSWER ANY QUESTION YOU ARE ASKED---'SPECIALLY IF YOU REPLACE THE DIST CAP?

WE CAN'T RULE STUFF OUT, UNTIL WE GET REAL TIME ACCURATE RESULTS FROM YOUR END. MANY POSSIBILITIES OF PROBLEMS. WE GENERALLY ATTRIBUTE IT TO "DEMONS", AFTER YOU HAVE COMPLETELY DISASSEMBLED YOUR CAR, AND WE CANNOT COME UP WITH ANY OTHER ANSWER

SPILL YOUR GUTS. THEY WON'T LET US GO HOME UNTIL YOU ARE FIXED!

THE MEDIC
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Thursday, January 5th, 2012 AT 1:38 AM
Tiny
BLACK3KBEAUTY97
  • MEMBER
I replaced the cap and it still does it
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Friday, January 6th, 2012 AT 5:06 PM
Tiny
HMAC300
  • EXPERT
Without actuallly seeing this I cannot give you anyother thing to go on unless you have an injector problem or slight vacuum leak or out of firing order.
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Friday, January 6th, 2012 AT 5:31 PM

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