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05 Mustang 4.0 start issue

buell-eyed-devil

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V8 Engine Swap
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Make / Model
FORD
Engine Type
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5.0-C6 in process
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Solid Axle Swap 4x4
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Car worked fine till the other day it wouldn’t start. Corrosion on positive terminal pretty bad so I cleaned it, jumped it off and drove it home. Worked fine for a couple days then does it again. Battery was low so I changed it to one with 800 cc’s. Now sometimes it cranks fine and sometimes it acts like the battery is dead. Radio loses stations, no click from starter. Any ideas?
 


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buell-eyed-devil

Member
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V8 Engine Swap
Joined
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Messages
220
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60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
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I turned key to on and left it for several minutes to reset alarm. Working now but I have my doubts
 

Dirtman

Former Middleweight Moss Fighting Champion
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It's up there.
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If there was bad enough corrosion on the battery terminal, it's likely the same corrosion is on the other side.
 

buell-eyed-devil

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Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
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5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
Problem is back. Load tested battery at almost 800cca. nothing. no codes. no nothing. Car was in a bad wreck before I got it. Seems anti theft is culprit but I dont know what to do with it. Any ideas would be appreciated
 

rubydist

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The pats sensor surrounding the ignition lock is a fairly fragile device, and they have been known to be damaged by a hard shock like a significant accident. If it is giving you the signal that it is not reading the key chip, I would consider replacing that sensor.
 

buell-eyed-devil

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1984
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FORD
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V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
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My credo
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Nothing comes up on scanner. When you turn to start everything dies
 

buell-eyed-devil

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V8 Engine Swap
Joined
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Messages
220
Reaction score
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60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
Something just occurred to me. The previous owner (the crasher) broke a key off in drivers door lock. To deactivate anti theft you have to unlock drivers door with a key. I wonder if this is my issue.
 

buell-eyed-devil

Member
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V8 Engine Swap
Joined
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Messages
220
Reaction score
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18
Age
60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
No ideas huh?
 

Dirtman

Former Middleweight Moss Fighting Champion
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Location
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Engine Type
2.3 (4 Cylinder)
Transmission
Automatic
2WD / 4WD
2WD
Total Lift
It's up there.
Total Drop
It's down there.
Tire Size
Round.
My credo
I poop in the furnace.
PATS security codes wont show up on a scanner. You have to put the key in the ignition, turn to run, and watch the anti theft light. After a minute if there is an issue it will start to flash a sequence, the sequence is the code.
 

buell-eyed-devil

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Joined
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Messages
220
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Age
60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
ordered a new key barrel for door. they sent me ignition set with dongle. is key set the same? Dont think door uses a chip
 

buell-eyed-devil

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V8 Engine Swap
Joined
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Messages
220
Reaction score
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Points
18
Age
60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
When I turn key to on there is no anti theft anything blinking. Maybe pats sensor?
 

buell-eyed-devil

Member
Supporting Member
V8 Engine Swap
Joined
Mar 30, 2008
Messages
220
Reaction score
20
Points
18
Age
60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
Car never stalled out. When it runs it runs fine. Since I towed it home nothing. Also taillights all didnt light up
 

Dirtman

Former Middleweight Moss Fighting Champion
Supporting Member
Joined
May 28, 2018
Messages
19,339
Reaction score
13,330
Points
113
Location
41N 75W
Vehicle Year
2009
Engine Type
2.3 (4 Cylinder)
Transmission
Automatic
2WD / 4WD
2WD
Total Lift
It's up there.
Total Drop
It's down there.
Tire Size
Round.
My credo
I poop in the furnace.
Did you ever actually check your ground cable and ground straps? Meaning on the block side, as well as testing for internal corrosion.
 

buell-eyed-devil

Member
Supporting Member
V8 Engine Swap
Joined
Mar 30, 2008
Messages
220
Reaction score
20
Points
18
Age
60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
Yes. Here's a new one. Got in Today and hit key. No start so I held it. 10 seconds later it starts but locked in park. Also right rear lights 2 of 3 don't work but bulbs are good. Car is haunted
 

buell-eyed-devil

Member
Supporting Member
V8 Engine Swap
Joined
Mar 30, 2008
Messages
220
Reaction score
20
Points
18
Age
60
Location
Wesley Chapel,Florida
Vehicle Year
1984
Make / Model
FORD
Engine Type
V8
Engine Size
5.0-C6 in process
Transmission
Automatic
2WD / 4WD
Solid Axle Swap 4x4
Total Lift
3"body on new poly body mounts
Tire Size
35
My credo
Hey ya'll, watch this
Thinking about trading for a Kia
 

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