Cranks but won't start! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ishtim · 05-27-2003, 01:43 PM

My truck began this odd sputtering but would idle OK as long as you did not give it alot of gas. My first guess was fuel filter / pump. I have since checked the gas flow from the filter to the carb and it seems to be fine. Next, I guessed junk in the carb, Nope, checked it (weber / edelbrock) by removing the top "hat" and it was clean. My next step was to look for spark, pulled a plug, grounded it to the frame and looked for spark, but didn't see any. Now I was onto the distributor added new cap and rotor, tested the coil with ohm meter (OK), then down to the pick up coil (which had an odd reading of 178 ohm) which is supposed to read 500-1500ohms.
I ended up replacing the pick up coil and module while I was digging around in there. I then re-stabbed the distributor and still no fire.... WTF?

I am looking for some advice on next steps to take...

rockman20 · 05-27-2003, 02:09 PM

Check to make sure that you are getting power to the coil.

Ishtim · 05-27-2003, 02:14 PM

Oh yeah... I do have 12 V at the "BAT" terminal

rockman20 · 05-27-2003, 02:44 PM

Hmmmm......

Have you tested other plugs? Perhaps it is a bad wire and or plug?

Is the "button" making contact from the coil to the tab on the rotor?

SS79chevy · 05-27-2003, 05:52 PM

could be bad plugs bad plug wires bad gas or you could have a short in the power wire to the coil I would change the plugs and plug wires and then clean the **** out of the carb with some carb cleaner

TC70C10 · 06-03-2003, 01:07 PM

back to top.. Drew still needs help. No spark

rockman20 · 06-03-2003, 03:54 PM

What has been tried thus far?

**old Rusty C10** · 06-03-2003, 07:54 PM

plugs and wires next

Grim Reaper · 06-04-2003, 12:23 PM

84 I belive had ESC. On the fire wall between the blower box and the distributor will be a harness going through if you have it. There is a control modual behind the glove box.

Did you check your fuses? The ESC I believe is on a sperate fuse from the coil (where you would have checked power at on the cap).

05-27-2003, 01:43 PM	#1
Ishtim Registered User Join Date: May 2003 Location: Looking out the window at my truck! Posts: 8	Cranks but won't start! My truck began this odd sputtering but would idle OK as long as you did not give it alot of gas. My first guess was fuel filter / pump. I have since checked the gas flow from the filter to the carb and it seems to be fine. Next, I guessed junk in the carb, Nope, checked it (weber / edelbrock) by removing the top "hat" and it was clean. My next step was to look for spark, pulled a plug, grounded it to the frame and looked for spark, but didn't see any. Now I was onto the distributor added new cap and rotor, tested the coil with ohm meter (OK), then down to the pick up coil (which had an odd reading of 178 ohm) which is supposed to read 500-1500ohms. I ended up replacing the pick up coil and module while I was digging around in there. I then re-stabbed the distributor and still no fire.... WTF? I am looking for some advice on next steps to take... Attached Images __________________ 1984 K10 - 305 CID - 4bbl

05-27-2003, 02:09 PM	#2
rockman20 "The dude abides" Join Date: Apr 2003 Location: North Dakota Posts: 472	Check to make sure that you are getting power to the coil. __________________ RockMan 1993 Chevy Silverado C3500 1 ton dually 1994 Honda Civic 1969 Oldsmobile Cutlass S 1953 IH Farmall Super M New to the fleet: 1992 Subaru Loyal

05-27-2003, 02:14 PM	#3
Ishtim Registered User Join Date: May 2003 Location: Looking out the window at my truck! Posts: 8	Oh yeah... I do have 12 V at the "BAT" terminal __________________ 1984 K10 - 305 CID - 4bbl

05-27-2003, 02:44 PM	#4
rockman20 "The dude abides" Join Date: Apr 2003 Location: North Dakota Posts: 472	Hmmmm...... Have you tested other plugs? Perhaps it is a bad wire and or plug? Is the "button" making contact from the coil to the tab on the rotor? __________________ RockMan 1993 Chevy Silverado C3500 1 ton dually 1994 Honda Civic 1969 Oldsmobile Cutlass S 1953 IH Farmall Super M New to the fleet: 1992 Subaru Loyal

05-27-2003, 05:52 PM	#5
SS79chevy Registered User Join Date: May 2003 Location: hurst,TX Posts: 73	could be bad plugs bad plug wires bad gas or you could have a short in the power wire to the coil I would change the plugs and plug wires and then clean the **** out of the carb with some carb cleaner __________________ 1979 chevy c10 short bed step side BBC in the works

06-03-2003, 01:07 PM	#6
TC70C10 Registered User Join Date: Nov 2001 Location: Harvest, AL 35749 Posts: 337	back to top.. Drew still needs help. No spark __________________ 1981 K5 Blazer 305, 4spd, 4x4, 4" Lift, custom bumpers, Warn 9.5 Ti Winch 1995 T10 Blazer 4.3L 4x4 (Son's) 2004 GMC Envoy 4.2L 2WD 2005 GMC Sierra Crew Cab Z71 4x4 5.3L 240 Fun Finder Travel Trailer Harvest, AL 35749

06-03-2003, 03:54 PM	#7
rockman20 "The dude abides" Join Date: Apr 2003 Location: North Dakota Posts: 472	What has been tried thus far? __________________ RockMan 1993 Chevy Silverado C3500 1 ton dually 1994 Honda Civic 1969 Oldsmobile Cutlass S 1953 IH Farmall Super M New to the fleet: 1992 Subaru Loyal

06-03-2003, 07:54 PM	#8
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,276	plugs and wires next __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

06-04-2003, 12:23 PM	#9
Grim Reaper Registered User Join Date: Jul 2001 Location: Atlanta GA Posts: 1,704	84 I belive had ESC. On the fire wall between the blower box and the distributor will be a harness going through if you have it. There is a control modual behind the glove box. Did you check your fuses? The ESC I believe is on a sperate fuse from the coil (where you would have checked power at on the cap). __________________ Grim-Reaper 70 Pontiac LeMans Sport Convertible, worlds longest resto in progress Looking for 71-72 2wd Blazer or Jimmy Project



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