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B2200 Slow to NO turn over when hot.

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B2200 Slow to NO turn over when hot.

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  #1  
Old 11-04-2018, 01:30 AM
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Default B2200 Slow to NO turn over when hot.

Hi,
Just got this '91 B2200 5spd (standard) with 262k.
Running fairly well. (leaks a lot of oil)

However, once hot if I turn it off then try to restart it...it will not turn the engine over until it cools 20-30 min.
It will rotate engine a little, but as if the battery is dead. Not enough to start it.

In morning when cold starts after 6-7 "rotations".

What done so far:
new battery
new starter
had battery and alternator tested twice. Once O'reillys. Another at Auto Z. Both Said alt and batt. are fine.
I added a ground from engine case to chassis. This did NOT help.
I am planning to replace ground wires tomorrow .
(I read online that could be issues with ground wires building up resistance.?)

I plan on looking at:
Fusable links?
Starter relay?
Voltage regulator of some sort?
Ignition switch?

Thanks for any input.!

also, couldn't upload photo for some reason in the meet & greet section. Thx
 

Last edited by Ruckus; 11-04-2018 at 01:32 AM. Reason: clarity
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  #2  
Old 11-04-2018, 09:42 AM
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I'd test the electrical part of the ignition switch WHEN the truck will not start. These are weak spots as these trucks get old; I replaced my own switch in my '88 back about 1995.

And don't forget to also check the safety switch on your clutch pedal.

I'd like to know the voltage reading across the battery WHILE it's trying to crank the engine.
 
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Old 11-04-2018, 10:15 AM
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Thx Cusser.
just to clarify to know what I am testing...
ignition switch: test at column near steering wheel? Checking to see that it has current? and how much?
clutch safety switch: checking to see it is getting current? or if it is heat hot? or that it functions mechanically?...or all?
thx
 
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Old 11-04-2018, 05:16 PM
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Did some tests

Across battery:
12.5(+) not running cold or hot engine
9-10v while cranking cold or hot
13 (+) while running cold or hot

Starter:
12 (+)v not running cold or hot engine
9-10v while cranking cold or hot engine

Ingnition switch at steering column:
With key on but not cranking.
( I am assuming the Blk/yllw is ground ?)

This is when hot (after run for 30 min. or so)
Blk/Ylw - Blk/wht -10v
blk/ylw - blue . 03v …..(but also had a -9v when cranking
blk/ylw - blk/rd -12v
blk/ylw - wht/red 11.75v - 12.78v

I put meter on clutch switch but got nothing. is this to be done while cranking?
 
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Old 11-05-2018, 09:22 AM
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Black/yellow goes to the clutch pedal switch, and then on to the starter. The clutch pedal switch only has continuity when pushed down, and will also only have voltage going to it when trying to start. A starter needs to have minimum of 9.6 volts to get it to operate.

Have you tried a jump start from another battery?
Cleaned all your connections and terminals?
Tried "jumping" your starter by putting in neutral and momentarily shorting the small wire connector at the starter to the large 12 volt positive wire terminal ? Be careful,
things like fan could start to spin.
Tried "jumping" your ignition switch by putting in neutral and momentarily shorting the Black/yellow ire to the hot wire?
Above tests will help diagnose your issue.

PM me with your E-mail address, and I'll send a wiring diagram manual; will be for later year but still applicable.
 
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Old 11-06-2018, 01:17 AM
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Posts and connections are clean.
Tried jumping from another running car. Just turned slow to dead.

Ignition switch is "hot wire" blk/red?

will try other suggestions tomorrow.
Thx
 

Last edited by Ruckus; 11-06-2018 at 04:19 AM.
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  #7  
Old 11-06-2018, 01:30 PM
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DID this today while engine hot and not turning over :

jumped at ignition switch = slow/no turn over. no start. (fyi blk/ylw to blk/rd)

jumped at starter = starter spun by itself freely (with ignition OFF)... BUT (ignition ON) when engaged w/ engine slow/no turn over

I can push start the truck pretty easily.

Perhaps I got a dud starter? from autozone?
 
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