84 F-150 dont start with key

Tiny
JOKER0707
  • MEMBER
  • 1984 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 147,000 MILES
Why does my 84 f150 not start with a key?When I jump it directly from battery engine knocks?
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Monday, August 8th, 2011 AT 10:11 PM

18 Replies

Tiny
CADIEMAN
  • MEMBER
Check your voltages at the starter selinoid on the fender.
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Monday, August 8th, 2011 AT 10:33 PM
Tiny
JOKER0707
  • MEMBER
I already have tried that but its not getting power.I even replaced the selinoid.
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Tuesday, August 9th, 2011 AT 1:07 AM
Tiny
CJ MEDEVAC
  • EXPERT
Does your solenoid look like this. We'll talk wires, when you respond

The Medic
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Tuesday, August 9th, 2011 AT 1:52 AM
Tiny
JOKER0707
  • MEMBER
Yes it looks just like it.
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Tuesday, August 9th, 2011 AT 3:58 AM
Tiny
CJ MEDEVAC
  • EXPERT
ON MY JEEP CJ SOLENOID ABOVE

2 LITTLE TERMINALS OUT FRONT

LEFT IS "S". WIRE ON IT IS FROM KEY. SHOULD HAVE 12 VOLTS (BATTERY VOLTAGE, WHATEVER IT IS) WHEN KEY IS IN "START POSITION" (REMOVE IT, FROM SOLENOID, TO TEST IT, WITH A VOLTMETER)

RIGHT IS "I" TERMINAL. IT ONLY CREATES BATTERY VOLTAGE, WHEN SOLENOID IS ACTIVATED (STARTER NORMALLY WOULD BE TURNING). IT PROVIDES THE COIL, FULL BATTERY VOLTAGE, WHILE THE STARTER IS "ROBBING" IT, DURING START UP. WHEN YOU RELEASE THE KEY, THE TERMINAL ITSELF DIES. HOWEVER THE WIRE ATTACHED TO IT WILL SHOW "REDUCED VOLTAGE" SORTA BACK-FEEDING FROM THE COIL. NORMALLY THE REDUCTION, COMES FROM A RESISTANCE WIRE, BETWEEN THE "KEY IN THE ON POSITION" AND THE COIL (YEARS BACK, A BALLAST RESISTOR DID THIS JOB)

FORGET "I", THOUGHT YOU MIGHT WANNA KNOW!

REASON I BROUGHT IT UP ISDID YOU ACCIDENTALLY SWAP THE TWO?

KNOCKING?----DO THIS PRIOR TO THIS NO CRANKY ISSUE?

EXPLAIN YOUR "JUMPING" PROCEDURE?

YES.I AM A SLOW, HUNT AND P. ECKER!

THE MEDIC
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Tuesday, August 9th, 2011 AT 4:22 AM
Tiny
JOKER0707
  • MEMBER
It's jumping power from the positive to the 's"
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Tuesday, August 9th, 2011 AT 4:43 AM
Tiny
CJ MEDEVAC
  • EXPERT
TESTED "S" WIRE, KEY IN "START"?

WHEN JUMPING, START UP. OR JUST TURNING OVER. KEY ON?

THE MEDIC
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Tuesday, August 9th, 2011 AT 4:54 AM
Tiny
JOKER0707
  • MEMBER
The only way we get power to the "s" is from jumping it from the selinoid.

While your trying to start it, It makes lot of grinding noise. And I don't
Know what's causing it.
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Tuesday, August 9th, 2011 AT 5:04 AM
Tiny
CJ MEDEVAC
  • EXPERT
CANNOT TEST. HUH?

"S" AND "I" WIRES CROSSED?

WHAT IS THE HISTORY, LEADING UP TO THIS?

WILL IT START?

NEED TO ANSWER ALL QUESTIONS.I NEED TO KNOW WHICH WAY TO GO!

IF YOU DO NOT HAVE A HARD. NON-JUMPING AROUND---BEING SCARED---GREAT CONNECTION BETWEEN BATTERY AND "S". IT WILL BE "INTERMITTENT"!

YOU GOTTA GO IN FOR THE KILL. MAINTAINING CONTACT. USING A SCREWDRIVER?

LATE HERE. REAL LATE. ANSWER QUESTIONS. NOT FAIR, I WRITE NOVELS, YOU WRITE ONE SENTENCE!

THE MEDIC
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Tuesday, August 9th, 2011 AT 5:15 AM
Tiny
JOKER0707
  • MEMBER
Ok what if I put a whole new ignition switch
In the dash and bypass the factory?
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Tuesday, August 9th, 2011 AT 5:19 AM
Tiny
JOKER0707
  • MEMBER
We have a small gauge wire we been jumping
It with also.
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Tuesday, August 9th, 2011 AT 5:21 AM
Tiny
JOKER0707
  • MEMBER
Lol its late here too and sorry bro I'm using a cell phone
So its a lot slower at writing.
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Tuesday, August 9th, 2011 AT 5:23 AM
Tiny
CJ MEDEVAC
  • EXPERT
WHAT IF YOU HAVE A BROKEN WIRE.4" INCHES FROM "S"?

ARE YOU SCARED TO TELL ME WHETHER THE VEHICLE WILL BUST OFF AND RUN, WHEN YOU JUMP "S"--KEY "ON"?

IF YOU WOULD JUST ANSWER QUESTIONS---PARAGRAPH FORM---I MAY CAN HELP!

GOT A VOLTMETER?

IF YOUR IGNITION SWITCH IS BAD---I GOT HOMEMADE PICS--AND DECENT EXPLANATIONS TO CHANGE IT

JUST "DOIN' STUFF" AIN'T FIGGERING OUT WHAT'S WRONG!SO WHY KEEP DOIN' IT?

MIGHT AS WELL ROTATE YOUR TIRES. THAT MIGHT NEED DOIN' TOO!

THE MEDIC
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Tuesday, August 9th, 2011 AT 5:30 AM
Tiny
JOKER0707
  • MEMBER
Thanks aot goodnight.
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Tuesday, August 9th, 2011 AT 5:33 AM
Tiny
CJ MEDEVAC
  • EXPERT
ARE YOU JUST TRYING TO GET HOME?

OR IS THIS A PERMANENT FIX?

DO YOU HAVE A KEY?

THE MEDIC
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Tuesday, August 9th, 2011 AT 5:34 AM
Tiny
JOKER0707
  • MEMBER
Its the only truck I got and I just don't k. Ow ****
Bout them. So I needed help.I'll talk more tomorrow.
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Tuesday, August 9th, 2011 AT 5:40 AM
Tiny
CJ MEDEVAC
  • EXPERT
ROGER

I'M EASTERN TIME.1/4 TILL 2!

GET A DIGITAL VOLTMETER.$10-$20 AT AUTO STORE!

I DON'T MIND HELPIN', JUST NEED YOU TO CHECK WHAT I WOULD CHECK, IF I WERE THERE!

THE MEDIC
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Tuesday, August 9th, 2011 AT 5:48 AM
Tiny
CADIEMAN
  • MEMBER
If you have no start signal on the s terminal. You need to check for start signal at the ingition switch.
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Tuesday, August 9th, 2011 AT 4:19 PM

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