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Old 12-08-2013, 01:52 AM   #1
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Confused

Okay I have been scratching my head for the past month about my Camaro, once I changed my rear end out the car starting losing power: I checked my MAS air flow sensor, the MAP sensor, and I also did a spark plug and wire change.... I don't know what else could be wrong with it is there any type of suggestions yu can give me as too what to check next....and also to add the car need a resistor on it an I put one on there but it would crank fine for about a month and half and then it just stop cranking when I turn it over the radio comes on but nothing else
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Old 12-08-2013, 02:53 AM   #2
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Originally Posted by 95LS1 View Post
Okay I have been scratching my head for the past month about my Camaro, once I changed my rear end out the car starting losing power: I checked my MAS air flow sensor, the MAP sensor, and I also did a spark plug and wire change.... I don't know what else could be wrong with it is there any type of suggestions yu can give me as too what to check next....and also to add the car need a resistor on it an I put one on there but it would crank fine for about a month and half and then it just stop cranking when I turn it over the radio comes on but nothing else
What are the symptoms? Also, maybe the fuel filter is clogged. Simple insurance. They cost like $8 and take 5 minutes to replace.
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Old 12-08-2013, 11:04 AM   #3
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Is the gear ratio in the new rear end the same as the old one?

As for the no start, it could be the electrical ignition switch.
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Old 12-08-2013, 01:51 PM   #4
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[QUOTE="NavyVet;569559"]Is the gear ratio in the new rear end the same as the old one? As for the no start, it could be the electrical ignition switch.[/QUOTE.


No the gear ratio is bigger it was a 3:42 now it's 4:11, but honestly when the car warms up it drives fine I be having to shift it by my hand(it's A4 by the way)
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Old 12-08-2013, 01:56 PM   #5
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What are the symptoms? Also, maybe the fuel filter is clogged. Simple insurance. They cost like $8 and take 5 minutes to replace.

The symptoms was that it was hard to crank but ingot the resistor put on and now I drove it for about a month and a half and now it was crank at all!!

But the power symptoms are it want do as it used too from a dead stop like it want fishtail or nothing now it had no power til it warm up but it still hesitates before it takes off
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Old 12-08-2013, 02:13 PM   #6
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Originally Posted by 95LS1 View Post

The symptoms was that it was hard to crank but ingot the resistor put on and now I drove it for about a month and a half and now it was crank at all!!

But the power symptoms are it want do as it used too from a dead stop like it want fishtail or nothing now it had no power til it warm up but it still hesitates before it takes off
I'm guessing not enough fuel is getting to the engine. It seems like either fuel or spark issue. Are there any codes? And like I said before, try changing the fuel filter. Easy insurance.
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Old 12-08-2013, 02:26 PM   #7
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[QUOTE=95LS1;569591]
Quote:
Originally Posted by NavyVet View Post
Is the gear ratio in the new rear end the same as the old one? As for the no start, it could be the electrical ignition switch.[/QUOTE.


No the gear ratio is bigger it was a 3:42 now it's 4:11, but honestly when the car warms up it drives fine I be having to shift it by my hand(it's A4 by the way)

Did you have the PCM retuned for the 4:11 gears?
If not, the engine speed and MPH don't compute correctly in the PCM,
which will definitely affect power output.
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Old 12-08-2013, 06:22 PM   #8
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[QUOTE=NavyVet;569602]
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Originally Posted by 95LS1 View Post


Did you have the PCM retuned for the 4:11 gears?
If not, the engine speed and MPH don't compute correctly in the PCM,
which will definitely affect power output.
+1
good place to at least start research...
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Old 12-13-2013, 07:25 PM   #9
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I tried boosting it off wit cables that didn't work, it still want turn over what's the next step
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Old 12-13-2013, 07:27 PM   #10
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Originally Posted by 95LS1 View Post
I tried boosting it off wit cables that didn't work, it still want turn over what's the next step
Finding a wiring diagram and tracing wires.
Check the start enable relay.
Does the security light go out?
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Old 12-13-2013, 09:57 PM   #11
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Yeah, sounds familiar with my '94...the start relay was bad under the drivers kick panel...

What about the starter itself, did you have it checked?

The ignition circuit is pretty simple, ignition switch at column, runs through relay to coil(s), goes to starter solenoid...

Wait, it also goes through the neutral safety switch on the floor shifter...places to check, anyway...
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Old 06-12-2014, 03:16 PM   #12
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Man I have a issue, I bought a 94 z28 from a friend, he lost the key, so I took apart the steering wheel and took out the ignition so that I can just turn with needle noses. Now the problem is that I get power but no crank and I don't even hear the fuel pump engage, what could it be?
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Old 06-12-2014, 03:46 PM   #13
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Quote:
Originally Posted by chevee boy View Post
Man I have a issue, I bought a 94 z28 from a friend, he lost the key, so I took apart the steering wheel and took out the ignition so that I can just turn with needle noses. Now the problem is that I get power but no crank and I don't even hear the fuel pump engage, what could it be?
Please start your own thread in the appropriate section. This is an old thread. Also, please don't spam your questions all over the site.
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