Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

91 Z28, horn will beep when trying to start and wont crank

Thread Tools
 
Search this Thread
 
Old 04-20-2009, 02:59 PM
  #1  
Junior Member
Thread Starter
 
Z0Sizzle's Avatar
 
Join Date: Apr 2009
Location: Boston MA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Car: 91 Z28
91 Z28, horn will beep when trying to start and wont crank

Hey guys, i am new to this board and yes i did try searching but didnt find anything solid. The problem is this: 91 Z28, i just replaced the engine and when i tried to start it the horn beeps when the key is turned to the cranking position. i jumped the starter and it cranks fine so that rules out the starter. The car has a aftermarket shifter so i took it apart and tied the neutral safety wires together but still nothing. I have to wait till i have some help to see if the wire at the starter is getting any power when the key is turned. I dont know if the car has a aftermarket alarm or not i will be looking into it tomorrow....anybody else have this issue? could it be the ignition switch? VATS? is it possible i have a power wire in the wrong place that somehow is feeding the horn instead of the starter solonoid?

thanks!
Old 04-20-2009, 03:18 PM
  #2  
Supreme Member
 
Wadebryant's Avatar
 
Join Date: Jul 2003
Location: KY
Posts: 1,236
Likes: 0
Received 0 Likes on 0 Posts
Car: 87IROC, 740iBMW, 328iBMW, 86GMC
Engine: 5.7, 4.4LV8, 2.8, 6.0
Transmission: Manuals & Auto's
Axle/Gears: 3.27, 3.42
Re: 91 Z28, horn will beep when trying to start and wont crank

Welcome to TGO.

Do you have a wiring schematic for your year / model of car? If not, go to this web site:
http://www.chevythunder.com/ and look up the ECM application that fits your car.

Last edited by Wadebryant; 04-20-2009 at 03:24 PM. Reason: Add info
Old 04-20-2009, 04:40 PM
  #3  
Supreme Member

iTrader: (3)
 
BigBadLou's Avatar
 
Join Date: Jul 2004
Posts: 2,989
Likes: 0
Received 5 Likes on 4 Posts
Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: 91 Z28, horn will beep when trying to start and wont crank

If you need body wiring diagrams, take a look here: http://www.austinthirdgen.org/index.php?pid=19
We have detailed diagrams for each system in the car for the 90+ vehicles.

Does the horn normally work? Does it start the car by any chance?
I'd suggest removing the horn relay from the convenience center and cranking again. If the horn sounds, I'd look at the engine room wiring, you might have a wiring problem.

Hope this helps.
Lou
Old 04-20-2009, 07:28 PM
  #4  
Senior Member

iTrader: (1)
 
tom86iroc's Avatar
 
Join Date: May 2008
Location: pawtucket RI
Posts: 867
Received 1 Like on 1 Post
Car: 1986 iroc
Engine: alum. head 350 supercharged
Transmission: 6speed
Axle/Gears: ford 9in 3.90 35 spline moser axles
Re: 91 Z28, horn will beep when trying to start and wont crank

sound slike an aftermarket alarm the horn wont sound with the vats just won't crank or no inj pulse
Old 04-20-2009, 08:39 PM
  #5  
Junior Member
Thread Starter
 
Z0Sizzle's Avatar
 
Join Date: Apr 2009
Location: Boston MA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Car: 91 Z28
Re: 91 Z28, horn will beep when trying to start and wont crank

cool thanks guys, im going to take a look at it tomorrow and see if anyones hacked in a alarm or anything.....thx!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bryan623
TPI
7
03-22-2021 06:43 PM
Caspar
TPI
24
06-19-2016 11:19 PM
Orr89RocZ
Power Adders
206
04-25-2016 08:28 AM
TheExaminer
Cooling
26
08-26-2015 04:59 PM
mizz0313
Transmissions and Drivetrain
3
08-12-2015 06:45 AM



Quick Reply: 91 Z28, horn will beep when trying to start and wont crank



All times are GMT -5. The time now is 12:12 PM.