1985 Jeep CJ7 electrical issue

Follow the smaller positive battery wire to the under-hood fuse box and be sure that connection is clean and tight. Also, follow the smaller black negative battery wire to the body and be sure that one is tight and not rusty. The positive wire causes a lot of trouble on all car brands.

If that doesn't solve the problem, you'll need a voltmeter or test light. And you'll need to get it to where the problem is occurring so we can do some testing.

I'LL BE ON STANDBY IF YOU NEED SOME PICS DOC!

THE MEDIC

YE OLE "+" WIRE DOES NOT GO TO THE FUSE BOX

IT GOES TO MR. SOLENOID!

THE BIG "+" CONTINUES THRU THE SOLENOID TO THE STARTER (WHENEVER THE SOLENOID IS ENERGIZED)

THE CABLE, "+ TYPE" COMES OFF OF THE BATTERY AND GOES TO THE SOLENOID

ON THE SOLENOID POST (SAME POST THAT THE "BAT +" IS ON) ALSO HAS SEVERAL OTHER WIRES STACKED UPON IT.

THESE ARE THE POSITIVE BATTERY FEEDS TO THE ENTIRE JEEP (ALTERNATOR, FUSE BOX, HEAD LIGHTS, ETC!

THE OTHER POST GOES TO THE STARTER, NUTHIN' ELSE SHOULD BE ON THAT POST, ONLY THE STARTER CABLE!

THERE ARE 2 OTHER LITTLE BITTY POSTS ON THE SOLENOID

THIS MIGHT BE YOUR PROBLEM! I WILL EXPLAIN IN A BIT AND W/ PICS!

I WANT YOU TO READ THIS POST, IT PERTAINS TO THE BATTERY--LONG AND BORING, PICS AT THE END, AND OF COURSE, IN CJ MEDEVAC STYLE!

https://www.2carpros.com/questions/1996-chevrolet-tahoe-wont-start-sounds-dead-battery-jumpbox-get-same-reults

NOW LETS DISCUSS MR. SOLENOID
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IN MY PICS, I HAVE THE GOODIES ON THE BIG POSTS REVERSED FROM WHAT YOU HAVE (FROM FACTORY)

I HAVE A GOOD REASON FOR THAT, WE CAN DISCUSS IT LATER ON IF YOU WISH!

IT WILL WORK EITHER WAY, AS LONG AS THE STARTER CABLE IS ALL BY ITSELF!

JUST WANTED YOU TO KNOW THAT, SO YOU WOULD NOT FREAK OUT ON MY SET UP!

MY PIC WILL EXPLAIN THE REST

I FEEL SURE, WITH ALL OF THIS INFO, THAT PUPPY WILL AT LEAST CRANK (HOPEFULLY START TOO!) UNLESS MR. BATTERY OR MR. STARTER LACK

ANY MORE CJ ISSUES? I CAN LINK YOU TO HUNDREDS OF JEEP CJ ANSWERS I HAVE GIVEN, I HAVE MANY MANY FIXIN' PICS!

RETURN WITH A GRIN!

THE MEDIC

JEEP IN NEUTRAL

KEY OFF

STAND BESIDE THE JEEP, NOT IN FRONT

TELL ME WHAT HAPPENS IF YOU TOUCH A JUMPER WIRE TO THE POSITIVE BATTERY POST AND THEN OVER TO LITTLE POST "C" (YELLOW "C") IN MY DIAGRAM (ON THE SOLENOID)

WHATEVER HAPPENS, DO NUTHIN' ELSE!

RETURN WITH NEWS

THE MEDIC

HOW COULD YOU JUST LEAVE YOUR SICK BABY LIKE THAT?

I'M ALWAYS HERE (IN THE EVENINGS ANYWAY)

WAITIN' FOR YOU

THE MEDIC

YOU SORTA LOST ME ON YOUR LAST TRANSMISSION

DO YOU MEAN "I" TERMINAL IS ENERGIZED WHEN THE SOLENOID "MAKES"?

SO WE STILL DO NOT HAVE POWER TO "S WIRE", IF DETACHED FROM "S" TERMINAL ON THE SOLENOID (NOT USING JUMPER WIRE AT ALL) WHEN THE KEY IS ON "START" ?

LETS GO TO THE SOLENOID, THE SIDE WITH THE POSITIVE BATTERY CABLE (AND ALL OF THE OTHER SMALLER WIRES HOOKED ON)

LOOSEN/ CLEAN/ SCOOCH THE RINGS AROUND NEXT TO THE BATTERY CABLE- THEN TIGHTEN IT BACK UP GOOD!

NOW

IF YOU HAD THIS APART BEFORE, LOOK AROUND MAYBE YOU DROPPED A WIRE AND NEVER REPLACED IT?

LET'S DISCUSS THIS (IT'S AMAZING!) MIGHT COULD BE YOUR ISSUE ALSO

LET'S SCROLL DOWN TO "Dec 2, 2012." (BESIDE MY AVATAR) IN THIS POST. ACTUALLY MY LAST ANSWER ON PAGE 1.

https://www.2carpros.com/questions/1979-jeep-cj5-having-trouble-getting-starter-engage-taken-down-they-good

READ ABOUT THE FUSIBLE LINKS - DARE NOT TAKE THEM OUT OF YOUR SYSTEM! THEY ARE YOUR LAST LINE OF DEFENSE!

THE MEDIC

MAYBE THE END OF MY LAST ANSWER DID NOT SOUND RIGHT!

HERE'S THE DEAL - WE GOT 2 FUSIBLE LINKS IN THE SYSTEM AT THE SOLENOID

THE FUSIBLE LINK IS ONLY AT THE BEGINNING OF THE WIRE IT FEEDS (A FEW INCHES), THE REST OF THE WIRE IS JUST PLAIN OLE WIRE!

I'M SENDING YOU A CHUNK OF A 1979 WIRE DIAGRAM THAT I COLORED THE WIRES IN THE ENTIRE DIAGRAM

YOU WILL SEE THE 2 FUSIBLE LINKS BESIDE THE POST ALONG WITH THE BATTERY CABLE.

THE "CIRCLE" FOUND WHERE THEY MEET IS ACTUALLY 2 RING CONNECTORS STACKED ON EACH OTHER (THEY DO NOT ACTUALLY CONNECT, AS IT LOOKS)

YOU CAN USE A TEST LIGHT TO STAB INTO THE INSULATION OF THE WIRES TO SEE WHERE THE 12 V FEEDS END (PROBABLY REAL CLOSE TO THE SOLENOID)

LET ME KNOW IF THE FUSIBLE LINK IS FRIED, I'LL LOOK UP THE PROPER AMP RATING FOR THE ONE YOU "REALLY" NEED TO REPLACE IT WITH.

THESE 2 FUSIBLE LINKS DO ALL OF THE POWER FEEDING FOR THE WHOLE JEEP (TO INCLUDE THE "S" WIRE FROM THE IGN SWITCH, AS WELL AS IGN ITSELF)

SEE IF YOUR BODY GROUND IS GOOD (LAST PIC)

I'M SENDING SEVERAL PICS

SORRY IF I'M NOT HELPING WELL, I WANTED TO INSURE THE STARTER WAS FED PLENTY OF JUICE IN THE LAST TEST

THE MEDIC

ALL RIGHTY THEN

PIC 1) SMALL WIRE GOES TO BODY FROM THE NEGATIVE BATTERY CLAMP

PIC 2) NEGATIVE BATTERY CABLE GOES TO THE ENGINE, MINE IS ON THE HEAD, SORTA BEHIND THE HOSE CLAMP. THIS GIVES THE STARTER A DIRECT GROUND TO THE ENGINE BLOCK

PIC 3) THIS IS HOW THE GROUND GETS TO THE FRAME, A CABLE JUMPING FROM THE ENGINE MOUNT TO THE FRAME. SOMETIMES THIS "JUMPER" IS A FLAT WOVEN GROUND STRAP. BASICALLY BYPASSES THE RUBBER MOUNT

THE MEDIC

I'M SO GLAD YOU FOUND IT!

AT MINIMUM, YOU HAVE POSSIBLY LEARNED SOMETHING ABOUT TRACING THINGS DOWN, STARTING AT THE SOURCE.

NOT KNOWING YOUR ABILITIES, BEING ABLE TO REPAIR YOUR JEEP WILL SAVE YOU HUNDREDS, IF NOT, THOUSANDS OF DOLLARS AND MAKE YOU STRUT AROUND LIKE A BANTAM ROOSTER IN FRONT OF ALL OF YOUR NON-MECHANICAL FRIENDS!

IF YOU WILL GET A PAPER REPAIR MANUAL, PROTECTED IN A GALLON SIZE ZIP-LOCK BAG, SOMETHING TO KEEP IN YOUR JEEP, ALONG WITH SOME BASIC TOOLS, YOU WILL BE ALMOST INVINCIBLE!

I GO OVERBOARD, I ALMOST KEEP A SHOP-FUL OF TOOLS IN BOTH OF MINE AND A FEW SPARE PARTS. PARTS THAT ARE EZ TO REPLACE, BUT HAVE LEFT ME WALKING IN THE PAST. THE BIG ITEMS BEING, A COIL, AN IGNITION MODULE, AND A FUEL PUMP.

SINCE I STARTED CARRYING THESE ITEMS, I HAVE NOT NEEDED 'EM, HOWEVER, ON TWO OCCASIONS TWO OTHER CJs THAT I RAN ACROSS ON THE SIDE OF THE ROAD WERE SO HAPPY THAT I HAD THE FUEL PUMP AND THE IGNITION MODULE!

JUST SO YOU KNOW NOW, AND IN THE FUTURE, I WILL HANG WITH YOU NO MATTER HOW LONG IT TAKES TO GET YOU GOING. GO TO THE TOP OF THE PAGE IF YOU'LL LOOK UNDER "QUESTIONS" AND "MAKES" THEN CJ-5 AND CJ-7, THERE ARE SEVERAL QUESTIONS THAT HAVE RUN OVER 100 RESPONSES. THERE'S ALSO A BUNCH OF OTHER INFO ON THE HOME PAGE.

HERE'S ANOTHER WAY TO LOOK AT SOME OF MY JEEP ANSWERS. THE PICS MAY GET YOU INTERESTED, CLICK ON "VISIT PAGE" IF SOMETHING SPARKS YOUR INTEREST. SEE THIS LINK.

http://www.google.com/search?q=2carpros+cj+medevac+jeep&espv=2&biw=1366&bih=643&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAmoVChMIo9ni76TrxwIVx5-ACh2bnQ4Y

IF YOU EVER NEED ME, YOU CAN COME BACK TO THIS POST, OR SUBMIT A NEW QUESTION AND ASK FOR ME IN THE BEGINNING OF IT.

REMEMBER TO WAVE AT THE OTHER "REAL JEEPS"!

THE MEDIC

OK

MR. LINK DID NOT WORK

HERE'S TRY NUMBER TWO

www. Google. Com/search?Q=2carpros+cj+medevac+jeep&espv=2&biw=1366&bih=643&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAmoVChMIo9ni76TrxwIVx5-ACh2bnQ4Y

THE MEDIC