where to start
Thread Starter
Racer
Joined: Feb 2006
Posts: 462
Likes: 0
From: green valley az
where to start
Sat. nite,going to eat,my 84,which had been running good,deceided to take a rest.Just quit.
I coasted over to the side,won't start,battery,new,goes dead in about 5 min's. Call a tow,no easy task here in the Desert,wait an hour,
get the car home in the garage. I have replaced everything in the past except the steering wheel,and it's really *&^$#$^& me off. I know it could be any one of 20 things,so maybe in about a week I'll be ready to tackle it. I'm leaning toward's the Coil
,which is new,MSD,but I have read a lot of bad reports on them.Try my old one first,if that's not it,I'll move to the fuel pump,and then to the alternator.
Wish me luck,.....Keep you guys filled in...When you smile the whole world smiles with you....When you cry,you cry alone..
I coasted over to the side,won't start,battery,new,goes dead in about 5 min's. Call a tow,no easy task here in the Desert,wait an hour, get the car home in the garage. I have replaced everything in the past except the steering wheel,and it's really *&^$#$^& me off. I know it could be any one of 20 things,so maybe in about a week I'll be ready to tackle it. I'm leaning toward's the Coil ,which is new,MSD,but I have read a lot of bad reports on them.Try my old one first,if that's not it,I'll move to the fuel pump,and then to the alternator. Wish me luck,.....Keep you guys filled in...When you smile the whole world smiles with you....When you cry,you cry alone..
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Your user name sounds familiar. Haven't you been through this before?
Fixing your car by shotgunning parts based on a hunch is not an economical way to do it, If your battery lasts 5 minutes, you must have a defective battery or some hellacious current being drawn from it.
Charge your battery back up before you start diagnosis.
Fixing your car by shotgunning parts based on a hunch is not an economical way to do it, If your battery lasts 5 minutes, you must have a defective battery or some hellacious current being drawn from it.
Charge your battery back up before you start diagnosis.
Thread Starter
Racer
Joined: Feb 2006
Posts: 462
Likes: 0
From: green valley az
Originally Posted by jfb
Your user name sounds familiar. Haven't you been through this before?
Fixing your car by shotgunning parts based on a hunch is not an economical way to do it, If your battery lasts 5 minutes, you must have a defective battery or some hellacious current being drawn from it.
Charge your battery back up before you start diagnosis.
Fixing your car by shotgunning parts based on a hunch is not an economical way to do it, If your battery lasts 5 minutes, you must have a defective battery or some hellacious current being drawn from it.
Charge your battery back up before you start diagnosis.
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
Originally Posted by robertt43
battery,new,goes dead in about 5 min's.
Melting Slicks
Joined: Jul 2006
Posts: 3,356
Likes: 1
From: Chesapeake Va
Originally Posted by redrose
first check always,
always,
always,
always,
does it have fuel pressure??
your 84 has tBi, needs 9 psi MINIMUM
always,
always,
always,
does it have fuel pressure??
your 84 has tBi, needs 9 psi MINIMUM
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Thread Starter
Racer
Joined: Feb 2006
Posts: 462
Likes: 0
From: green valley az
Originally Posted by redrose
first check always,
always,
always,
always,
does it have fuel pressure??
your 84 has tBi, needs 9 psi MINIMUM
always,
always,
always,
does it have fuel pressure??
your 84 has tBi, needs 9 psi MINIMUM
Thread Starter
Racer
Joined: Feb 2006
Posts: 462
Likes: 0
From: green valley az
Originally Posted by robertt43
Yes good pressure,both inject/carbs spraying well. Checked the pump first,had to replace that 2 months ago,got stuck in Yuma,AZ.,106' outside,but it started and I limped home.I'm thinking ALTERNATOR,the only part I have not replaced,just cleaned up,[previous owner in his infinate wisdom had CLEARED COATED the entire motor,and the SAWBLADES,even the shroud]! Go figure....anyway,will a BURNT,WASTED,Alternator stop it from starting? Battery is new and fully charged,and it cranks fast,but still no cigar!
EUREKA!
I found it,a broken rotor of all things,just broke off at the contact area to the cap. 
That's what I meant earlier when I referred to cheap *&^%$^ plastic crap. Oh well,all's well that ends well,THANKS FOR THE HELP sometimes just knowing you guys are here,and know more about these cars and their problems than most mechanic's,is a good sense of security to have.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
Originally Posted by edcmat-l1
Is that first AFTER battery check? (12.6 volts, no load) no voltage no fuel pressure. Bad alt, drains battery, stalls, no start, etc
YES , a bad alternator can send so much ripple to the ecm that a no-start can occur, altho its unusual...what OFTEN happens is that a bad alternator will ''spike'' the ecm with high voltage while the engine is running and murder the ecm (and the dizzy module, radio, and everything else, even your scanner)
Burning Brakes
Joined: Mar 2006
Posts: 808
Likes: 0
From: Metairie Louisiana
Originally Posted by robertt43
EUREKA! I found it,a broken rotor of all things,just broke off at the contact area to the cap. That's what I meant earlier when I referred to cheap *&^%$^ plastic crap. Oh well,all's well that ends well,THANKS FOR THE HELP sometimes just knowing you guys are here,and know more about these cars and their problems than most mechanic's,is a good sense of security to have. Congrats on the Fix,Robertt43!Knew you'd "whoop" it!
congrat's on the fix!