C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

igmition start problem

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Old Jan 21, 2012 | 10:06 PM
  #61  
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Ok here is what I did today
Battery test from positive to negative pole. When crank. I get 12.2 volts
From the positive conector in the stater motor to the case of the starter crank I get 12.2 volts

Forgot to say .If battery is not under load. It show 12.5 volts

Last edited by hitmanpty; Jan 21, 2012 at 10:17 PM.
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Old Jan 21, 2012 | 10:14 PM
  #62  
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Test from the trigger cable.
Positive to trigger on solenoid (s connector)
Negative on battery
I get 10.6 when crank

Forgot to mention, I delite the gear position switch

I find out that if my battery show 12.5 it meent battery is at 50%

Any way. Can some one tell me what can you figure out from this information

Last edited by hitmanpty; Jan 21, 2012 at 10:20 PM.
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Old Jan 21, 2012 | 11:38 PM
  #63  
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Ttt
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Old Jan 22, 2012 | 08:12 AM
  #64  
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Do you hear anything at solenoid when crank is attempted ?
Refresh my memory, is the push button start, gone ?
What is the voltage at trigger wire when not connected to solenoid, during crank ?
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Old Jan 22, 2012 | 11:09 AM
  #65  
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No noise from solenoid
Push bottom start is gone
I i think i did that test before install the starter. Dont remeber exactely. What was the reading but iam preTy sure it was over 12 volts.

Also. Just to make sure! I just took my battery to the test battery shop
And the person there say battery is ok. They also did a load test. And is ok
This was done today about 2 hours a go

Last edited by hitmanpty; Jan 22, 2012 at 11:22 AM.
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Old Jan 22, 2012 | 11:18 AM
  #66  
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A poor electrical connection can give you volts on a meter, but not allow suffient current to do the job. That being said, you source of power from ignition switch, may not have have a good connection.
If you were to make a fused jumper wire from battery +,
to replace your yellow wire connection, it may help answer the question of a poor power connection.
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Old Jan 22, 2012 | 11:21 AM
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Just to clarify, run a temperary wire from battery to the green wire, before shift switch.
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Old Jan 22, 2012 | 11:25 AM
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Now since i have a cable bypassing the gear selection switch. The only thing left is the ignition switch how do i go about checking this ignition switch
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Old Jan 22, 2012 | 11:28 AM
  #69  
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Originally Posted by AGENT 86
Just to clarify, run a temperary wire from battery to the green wire, before shift switch.
Whati did yesterday. Was run a temporary wire fron yellow wire fron ignition switch to purple wire. This way. By passing gear selection.
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Old Jan 22, 2012 | 11:31 AM
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Originally Posted by hitmanpty
Whati did yesterday. Was run a temporary wire fron yellow wire fron ignition switch to purple wire. This way. By passing gear selection.
Do not use the yellow wire for power, bypass that wire with one direct from battery. The power source from yellow, may be the problem.
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Old Jan 22, 2012 | 11:33 AM
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You r saying to run a wire from battery to green and white wire If the starter work. Them my problem will be ignition switch right??????
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Old Jan 22, 2012 | 11:36 AM
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Originally Posted by hitmanpty
You r saying to run a wire from battery to green and white wire If the starter work. Them my problem will be ignition switch right??????
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Old Jan 22, 2012 | 11:39 AM
  #73  
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I will go to my mother house after lunch and report back later today thanks
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Old Jan 22, 2012 | 01:40 PM
  #74  
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Well...you guy's get up earlier than me & have been making some progress.

Agent86's experiment (wire from battery to green/white wire) should show whether the ignition switch is the problem.

If it still doesn't start than there may be a problem with the purple wire---either a bad connection, frayed wire, or short in the cold start circuit? Or could it be the wrong solenoid?
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Old Jan 22, 2012 | 04:43 PM
  #75  
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Just get back from the car. I connect a wire from battery to purple wire. Bypassin. Every thing. And nothing.

May be iam doing something wrong i dont know. But iam serously thinking of calling an electro-mecanic.

Iam very frustraded. I have done every posible test i can think ok. I know the schrmatic like the palm ok my hand.

I even learn to use a voltimeter.

I think the electro mecanic is in order. Iam waisting to much timt on this problem and not doing nothing on the rest of the car.
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Old Jan 22, 2012 | 06:25 PM
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Bummer Romulo. There's nothing wrong with getting help if it's available & you can afford it.

Where did you connect the bypass wire to the purple wire? At the transmission position switch? At the solenoid? Somewhere in between?

It sounds like the problem is between the solenoid and the connection.
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Old Jan 22, 2012 | 07:24 PM
  #77  
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Originally Posted by 3D87C4
Bummer Romulo. There's nothing wrong with getting help if it's available & you can afford it.

Where did you connect the bypass wire to the purple wire? At the transmission position switch? At the solenoid? Somewhere in between?

It sounds like the problem is between the solenoid and the connection.
After the gear selection switch. Acording to schematic. The purple wire go direct to solenoid interesting is the cable on the solenoid iterminal is not purplu. Look more like decolorate wire. Is more like faded orange.. I try to trace the wire back but is go begine the engine. And cant go on.

Any way i think i will get some expert help here. Again lost to much time on this problem

In case you wander. I did a continuity test on this wire. Purple wire end on the solenot. Just not sure if there is any home made connection betwen the 2ends

Last edited by hitmanpty; Jan 22, 2012 at 07:31 PM.
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Old Jan 23, 2012 | 08:07 AM
  #78  
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Sorry to hear your getting no where, but it shouldn't be that hard to diagnose.
If you take that jumper wire from battery and go direct to solenoid, and it cranks, move to the next connection, and so on.

Did you try any other bypasses ?
Does it it still crank when you jump it from large stud to trigger wire stud ?
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Old Jan 23, 2012 | 01:20 PM
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I think you are getting closer.

After the gear selection switch. Acording to schematic. The purple wire go direct to solenoid interesting is the cable on the solenoid iterminal is not purplu. Look more like decolorate wire. Is more like faded orange.. I try to trace the wire back but is go begine the engine. And cant go on.
Is this wire in the harness or run seperately?
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Old Jan 23, 2012 | 09:25 PM
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Today i contacted a mecanic. Specialicing in electrical probles. On jueves. This week he will take a look ok the car. He will charge me $20 to see the car and give me and estimate on the repear. So i think i will do that and lear during the proccess

Mecanics Are not that spencive here. As in US.
Any way i will post the outcome here.

Last edited by hitmanpty; Jan 23, 2012 at 09:27 PM.
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