Mechanics

WHERE IS THE NOISE COMING FROM

1987 Jeep Wrangler • 197,700 miles

We have replaced our alternator and battery recently. After installing the new alternator, we have a very loud squealing noise. The belt looks good, what could it be. It gets louder when you push on the gas.
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Vickildiehl
September 8, 2012.




THE DARN SOUND WILL HAVE YOU THINKING ITS ANYTHING UNDER THE HOOD

TAKE A 3-4 FOOT LONG PIECE OF 1/2"-3/4" HEATER OR GARDEN HOSE. SHOVE ONE END IN YOUR EAR. USE THE OTHER LIKE A STETHOSCOPE

WATCH OUT FOR THOSE PESKY MOVING ENGINE PARTS!

I'M SORTA BETTING IT'S YOUR THROTTLE BODY. THE GASKET IS DOING THE KAZOO THING

REPLACING THE GASKET IS MOST LIKELY YOUR FIX

BE SURE THAT'S THE PROBLEM WITH THE CJ MEDEVAC-0-MATIC STETHOSCOPE

IF NOT, USE IT TO CONTINUE YOUR SEARCH

KEEP US POSTED

THE MEDIC
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Tiny
CJ MEDEVAC
Sep 8, 2012.
WAS KINDA LATE ON LAST ANSWER

IMMA CJ KINDA GUY.....YOU CAN SEE I SORTA AM MORE IN TUNE WITH HELPING THE CJs........THAT HAS BEEN MY MAIN MISSION, SINCE I BEGAN ANSWERING HERE!....ALL OF THESE OTHER VEHICLES I ANSWER IS SOMETHING TO DO WHILE I WAIT ON A CJ TO BREAK DOWN (SELDOM...BUT IT DOES HAPPEN)

http://www.2carpros.com/makes/jeep/cj7

http://www.2carpros.com/makes/jeep/cj5

I RECKON WHEN I SAW "WRANGLER" I FIGGERED IT WAS A MORE MODERN VERSION W/ FUEL INJECTION

LOOKS LIKE YOU HAVE AN EARLY MODEL...WHICH HAD MORE CJ INFLUENCE

.......YOU FAILED TO MENTION WHAT ENGINE?

SURELY YOU WOULDA GOT ONE W/ A 258!

SO......WHAT DO YOU HAVE?.....CARBURETED?

THE "HOSE TRICK" WILL WORK ON IT AS WELL

I'M SHIFTING MY THOUGHTS TO SOMETHING BELT DRIVEN

HOW 'BOUT THIS TEST....IT WILL ELIMINATE EITHER A SERIOUS ENGINE ISSUE OR IT WILL ELIMINATE THE BELT DRIVEN PART

TAKE THE BELT OFF....TURN ALL OF THE PULLEYS BY HAND.....ARE THEY SMOOTH?

NEXT

WITH THE BELT STILL OFF......FIRE HIM UP.....(NO MORE THAN FOR A MINUTE!!!! ....AS YOUR WATER PUMP WILL NOT BE CIRCULATING)

ARE WE EXPERIENCING THE SOUND NOW?

OK....SHUT HIM DOWN

WHAT HAVE WE DEDUCED FROM THIS....NOISE QUIT? OR IS IT IN THE ENGINE?

YOUR TURN...REPLY BELOW

THE MEDIC


Tiny
CJ MEDEVAC
Sep 8, 2012.

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