91 camaro rs 3.1l starting problem

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Jul 2, 2013 | 04:28 PM

Jordon Nutbrown

Thread Starter

Junior Member

Joined: Jul 2012

Posts: 18

Likes: 0

From: Tucson AZ

Car: 91 Camaro RS

Engine: 305 tbi

Transmission: 700R4

91 camaro rs 3.1l starting problem

I have a 91 rs 3.1 and recently it decided it doesn't want to start sometimes. It doesn't do anything when i turn the key. The lights and radio come on but nothing else. No click nothing, i tried cleaning the connections running to the starter and i thought that fixed it but, it started doing it again this morning. It has a brand new starter in it only has like 5000 miles on it. I don't know if there is anything in the steering colum that could be causing it, but if anyone has any ideas or tests i could do to narrow down my options it would be great thanks.

Jul 3, 2013 | 04:10 PM

NINÅ

Supreme Member

Joined: Jan 2006

Posts: 3,341

Likes: 10

From: Mooresville NC

Car: LOWERED ♦ CRIMSON METALFLAKE

Engine: ► 400 KUBES ◄

Transmission: 765R4

Axle/Gears: EATON POSI 4.56

Car Is Not Cranky . . . . SO I AM !!!!!!

Use a spare headlight (because it puts a load on the circuit) and connect it across the M terminal of the starter and ground.

Then connect a voltmeter across the M terminal and ground.

Make the leads long enuff to take the voltmeter into the cockpit.

Under normal circumstances, when cranking you will see about 9 volts on the meter.

On the occasions the starter fails to crank note the voltage.

The voltage will tell you what the problem is and what direction to turn.

If it’s about 12 while you are trying to crank, but the starter is not turning - the problem is in the starter.

If it’s under 8 while trying to crank - the problem is excessive resistance in the starting circuit.

Therefore if it is in the starting circuit you can move the probe you applied to terminal M at the starter, to the positive terminals at the solenoid, then keep moving up the line till the problem shows itself VIA increased voltage.

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