Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

HUGE problem, please help!

Thread Tools
 
Search this Thread
 
Old Sep 24, 2007 | 05:49 PM
  #1  
StreetRoc85 350's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2003
Posts: 749
Likes: 0
From: Acworth/Marietta, GA
Car: 88 IROC
Engine: 350 TPI
Transmission: Pro 5.0 shifted T56
Axle/Gears: 10 bolt 3.73 posi
HUGE problem, please help!

I was driving through a parking lot when my car suddenly quit. No noise, no pop, nothing. it just shut down. All electrical systems are dead except for my headlights, horn, and hatch release. turning the key does nothing, the gauges are dead and so are the windows and hatch motor. the battery is good, the connections are good, and i obviously have good voltage as the headlights are nice and bright. I just had to have it towed home and now i dont know where to begin. I tried a search but to no avail. Is there a fusable link somewhere that could cause this? All underdash fuses are intact. My windows are down, and my hatch is open and i cant even lock up my car. This is a very serious problem as this is my only car. Can someone please point me in the right direction? I really need to fix this soon because the car is outdoors with the windows down and the hatch up!
Reply
Old Sep 24, 2007 | 07:02 PM
  #2  
Freakazooid52's Avatar
Member
iTrader: (1)
 
Joined: May 2007
Posts: 135
Likes: 0
From: Detriot
Car: 1986 firebird
Engine: 350
Transmission: THM350
Axle/Gears: 3.42
Re: HUGE problem, please help!

search for a vats bypass, I think thats the problem.
Reply
Old Sep 24, 2007 | 07:24 PM
  #3  
StreetRoc85 350's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2003
Posts: 749
Likes: 0
From: Acworth/Marietta, GA
Car: 88 IROC
Engine: 350 TPI
Transmission: Pro 5.0 shifted T56
Axle/Gears: 10 bolt 3.73 posi
Re: HUGE problem, please help!

my car doesnt have vats. and even if it did and it was malfunctioning, my hatch motor and gauges and windows would still work. i think its deeper than that
Reply
Old Sep 24, 2007 | 08:51 PM
  #4  
gapimpin's Avatar
Member
 
Joined: Jan 2006
Posts: 371
Likes: 0
From: waco,texas
Car: 1991 Pontiac Firebird
Engine: 383 LT1
Transmission: built 700r4 and fuddle 3500stall
Axle/Gears: 4th gen 3.42 auburn
Re: HUGE problem, please help!

main grounds on the back of your cylinder heads...
Reply
Old Sep 25, 2007 | 01:26 AM
  #5  
RFmaster's Avatar
Supreme Member
 
Joined: Jan 2007
Posts: 1,873
Likes: 0
From: OC CA
Car: 75 Beast
Engine: 383 +EBL Flash
Transmission: 700R4
Axle/Gears: 4.11 with 33"
Re: HUGE problem, please help!

Roc85

1) Get a DVM - check All fuses. (They are OK per your post)
2) There is a fuse link that supplies main DC power bus at the starter. If that went you would not have any power at all.
3) If you are getting DC at the fuse panel then most likely ignition key cylinder (electrical portion) expired. I bet that you still have emergency blinker, brakes, dome light, dash lights, and headlights functionning.

//RF
Reply
Old Sep 25, 2007 | 03:12 AM
  #6  
Pat Hall's Avatar
Supreme Member
iTrader: (31)
 
Joined: Nov 2000
Posts: 3,347
Likes: 3
From: Roy,UT USA
Re: HUGE problem, please help!

Yeah, I'd suggest checking down at the starter motor. There's about 3 or 4 fusible links down there.
Reply
Old Sep 25, 2007 | 07:21 PM
  #7  
StreetRoc85 350's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2003
Posts: 749
Likes: 0
From: Acworth/Marietta, GA
Car: 88 IROC
Engine: 350 TPI
Transmission: Pro 5.0 shifted T56
Axle/Gears: 10 bolt 3.73 posi
Re: HUGE problem, please help!

well it turns out it was a fuseable link. but i dont see why it blew, theres nothing wrong with my wiring. none of my fuses blew and i dont see a short anywhere. could this just have blown due to age? im a bit skeptical now, i dont want to have this happen again because there is no way i can fix it by the side of the road. whats the deal here?
Reply
Old Sep 25, 2007 | 07:35 PM
  #8  
RFmaster's Avatar
Supreme Member
 
Joined: Jan 2007
Posts: 1,873
Likes: 0
From: OC CA
Car: 75 Beast
Engine: 383 +EBL Flash
Transmission: 700R4
Axle/Gears: 4.11 with 33"
Re: HUGE problem, please help!

It takes a lot of current to blow a fuse link!

I would check wiring harness between fuse-link and bulkhead. It is possible that you may have pinched/shorted main bus wire inside the harness loom against engine ground.
So take the time, disconnect battery, get a DVM and wiggle harness while keeping an eye on it.

//RF
Reply
Old Sep 27, 2007 | 02:43 AM
  #9  
Pat Hall's Avatar
Supreme Member
iTrader: (31)
 
Joined: Nov 2000
Posts: 3,347
Likes: 3
From: Roy,UT USA
Re: HUGE problem, please help!

It's possible that it blew due to a short, but it's equally possible that the wires just broke inside the fusible link section. The insulation on fusible links is a lot softer than normal wiring insulation, and I've seen quite a few of them just disentegrate with age. The softer insualtion allows more flexing and vibration to occur, which can cause the inner wires to break eventually. I've wiggled them before, and could see the loose part where the wires were broke inside. Other times, it's just corrosion inside where the black, round part is. If you're really worried about it, do as RFmaster suggested, and use a mulitmeter to check for shorts. Personally, I hate chasing wiring problems, so I'd just replace it and drive it. If it blew again, then I'd get out the meter.
Reply
Old Sep 28, 2007 | 01:00 PM
  #10  
StreetRoc85 350's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2003
Posts: 749
Likes: 0
From: Acworth/Marietta, GA
Car: 88 IROC
Engine: 350 TPI
Transmission: Pro 5.0 shifted T56
Axle/Gears: 10 bolt 3.73 posi
Re: HUGE problem, please help!

well i couldnt find a short so i just replaced it. no problems for now anyway. thanks guys...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
pjsparts
Tech / General Engine
11
Oct 29, 2025 06:39 PM
88rscamar0
Transmissions and Drivetrain
5
Sep 23, 2015 09:08 PM
383cam
Electronics
5
Sep 9, 2015 06:01 AM
andy74
Electronics
2
Sep 3, 2015 08:41 AM
greenyone
TPI
3
Sep 2, 2015 03:39 PM




All times are GMT -5. The time now is 08:59 AM.