engine problems help!

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wheelerboy12

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jeremy
Truck Year
1978
Truck Model
k10
Engine Size
350
Dang ole...rusty nut.....Mmmmmmm, Hmmmm.

Go ahead and relace it, cheap piece of mind. Supposed to look goldish. So, the pump is pumping fuel to the Carburetor?

yes it is, i pulled the fuel line right off the carb and stuck it in a gatorade bottle and then turned the key and it shot gas into the bottle till it stoped cranking
 

wheelerboy12

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GOBR

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Stick your tongue to the coil wire while a buddy cranks it and see if your gettin enough juice to the spark plug wires............. NO IM JUST KIDDIN!

Are you gettin a good enough spark? It should POP when it hits. Its fairly easy to check the ignition module, pickup, and the ignition coil. A weak spark will kill it also.

1. Test for power at the pink BAT terminal. You should have battery voltage w/ the key in the start and RUN positions.


2. Connect the ground side of your test lamp to the battery POSITIVE cable. Probe the TACH terminal on the dist. cap while a helper attempts to start the engine. The test lamp should blink repeatedly as the engine cranks. No blink= bad module or pickup coil. Further testing is required to pinpoint the problem. Blink but no spark = bad ignition coil.


3. Remove the cap & rotor. Remove the green & white leads from the module. Connect your ohmmeter to the green & white leads. You should have approx. 800-1500 ohms depending on the ambient temperature. Open circuit (infinite ohms) = bad pickup coil.


Wiggle the green & white leads as you test. Ohm reading should remain constant if the leads are good. If the reading varies as the leads are wiggled, the pickup coil is bad. You'll often find broken pickup coil leads this way.


4. DVOM (meter) still connected to green & white leads. Set your DVOM to AC VOLTS. Have a helper crank the engine as you watch the AC VOLTS reading. A good pickup coil will produce about 3V AC when cranking. Less than approx. 2V AC indicates a bad pickup coil.
 

wheelerboy12

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Joined
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Location
Dundee, OR
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jeremy
Truck Year
1978
Truck Model
k10
Engine Size
350
Stick your tongue to the coil wire while a buddy cranks it and see if your gettin enough juice to the spark plug wires............. NO IM JUST KIDDIN!

Are you gettin a good enough spark? It should POP when it hits. Its fairly easy to check the ignition module, pickup, and the ignition coil. A weak spark will kill it also.

1. Test for power at the pink BAT terminal. You should have battery voltage w/ the key in the start and RUN positions.


2. Connect the ground side of your test lamp to the battery POSITIVE cable. Probe the TACH terminal on the dist. cap while a helper attempts to start the engine. The test lamp should blink repeatedly as the engine cranks. No blink= bad module or pickup coil. Further testing is required to pinpoint the problem. Blink but no spark = bad ignition coil.


3. Remove the cap & rotor. Remove the green & white leads from the module. Connect your ohmmeter to the green & white leads. You should have approx. 800-1500 ohms depending on the ambient temperature. Open circuit (infinite ohms) = bad pickup coil.


Wiggle the green & white leads as you test. Ohm reading should remain constant if the leads are good. If the reading varies as the leads are wiggled, the pickup coil is bad. You'll often find broken pickup coil leads this way.


4. DVOM (meter) still connected to green & white leads. Set your DVOM to AC VOLTS. Have a helper crank the engine as you watch the AC VOLTS reading. A good pickup coil will produce about 3V AC when cranking. Less than approx. 2V AC indicates a bad pickup coil.

guess its time to find a friend with an ohm meter
 

Jims86

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Jim
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1986
Truck Model
K10 Suburban Silverado
Engine Size
5.7 TBI
Stick your tongue to the coil wire while a buddy cranks it and see if your gettin enough juice to the spark plug wires............. NO IM JUST KIDDIN!

Are you gettin a good enough spark? It should POP when it hits. Its fairly easy to check the ignition module, pickup, and the ignition coil. A weak spark will kill it also.

1. Test for power at the pink BAT terminal. You should have battery voltage w/ the key in the start and RUN positions.


2. Connect the ground side of your test lamp to the battery POSITIVE cable. Probe the TACH terminal on the dist. cap while a helper attempts to start the engine. The test lamp should blink repeatedly as the engine cranks. No blink= bad module or pickup coil. Further testing is required to pinpoint the problem. Blink but no spark = bad ignition coil.


3. Remove the cap & rotor. Remove the green & white leads from the module. Connect your ohmmeter to the green & white leads. You should have approx. 800-1500 ohms depending on the ambient temperature. Open circuit (infinite ohms) = bad pickup coil.


Wiggle the green & white leads as you test. Ohm reading should remain constant if the leads are good. If the reading varies as the leads are wiggled, the pickup coil is bad. You'll often find broken pickup coil leads this way.


4. DVOM (meter) still connected to green & white leads. Set your DVOM to AC VOLTS. Have a helper crank the engine as you watch the AC VOLTS reading. A good pickup coil will produce about 3V AC when cranking. Less than approx. 2V AC indicates a bad pickup coil.

I was just going to suggest a spark check. Just pull One of the wires, stick a bolt or screw driver in the boot, lay it about 3/4" or so away from the frame or something on the engine block, and have somebody crank it, while you watch. Its either getting spark, or its not. then worry about the meter. you may be able to borrow one, or call around, a lot of the parts houses will test coils and and modules....For Freeeeeeeeeeeee!
 

wheelerboy12

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k10
Engine Size
350
dont need a friend with a multi meter. got a fuel filter and now she fires right up and nothing bad happens. its sweet.
 

Jims86

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5.7 TBI
dont need a friend with a multi meter. got a fuel filter and now she fires right up and nothing bad happens. its sweet.

Well, thare ya go.
Dang ole fuel filter man...dang ole crankcrankcrankcrank...nuttn doin man. dang ole new filter crankcrankcrank....dang ole vrrrroooooom!
Nowhut i mean man?
 

wheelerboy12

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jeremy
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Truck Model
k10
Engine Size
350
Well, thare ya go.
Dang ole fuel filter man...dang ole crankcrankcrankcrank...nuttn doin man. dang ole new filter crankcrankcrank....dang ole vrrrroooooom!
Nowhut i mean man?

yeaa dang ole boomhower man

:waytogo:
Glad you got it lined out.

thanks, i am to it kinda was slightly agering that it just magically didnt want to work. but got it worked out!
 

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