Won't Start - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GMFamlee · 01-21-2006, 03:46 PM

Now, even jumping it, the truck won't turn over. It cranks, but won't fire. I haven't had that trouble with it previously, would it be the starter, spark plugs, or what?

Gordo · 01-21-2006, 06:20 PM

The first thing you need to find out is if the vehicle has spark and if it is getting fuel. You could first squirt a little carb cleaner or starting fluid down the carb and try to start it. If it attempts to start you have a fuel delievery problem. If there is no change check for spark. Pull off one spark plug wire from a spark plug, attach it to a spare spark plug, set it down on a grounded area, crank the engine over and observe. You want to see a nice sharp white/blue spark, if not you have a ignition problem.

krue · 01-21-2006, 06:24 PM

Have you updated to HEI yet?

cdowns · 01-21-2006, 06:36 PM

i'd say first you have to figure out if it's turning over or cranking or not / they are after all the same thing/// check for spark, no spark take dizz cap off inspect the points clean/replace and set the dwell/ also a good idea to clean/replace and gap sparkplugs// change the internal gas filter in the carb// get new air filter/// all this is called a TUNEUP and should be preformed on a regular basis

GMFamlee · 01-21-2006, 06:41 PM

Quote:

Originally Posted by krue

Have you updated to HEI yet?

Sorry, I'm not very knowledgeble in this department. What is HEI?

**truckdude239** · 01-21-2006, 08:38 PM

high energy ignition. it replaced the old points system

krue · 01-21-2006, 08:59 PM

HEI is the dizzy with the coil in the cap (big dizzy cap you can't miss it). If you had it I would tell you to check it, but since you don't you have to check your points, condenser and coil. That's if you're not getting spark.

01-21-2006, 03:46 PM	#1
GMFamlee Registered User Join Date: Aug 2005 Location: Caldwell, Idaho Posts: 27	Won't Start Now, even jumping it, the truck won't turn over. It cranks, but won't fire. I haven't had that trouble with it previously, would it be the starter, spark plugs, or what? __________________ GMFamlee 1971 Cheyenne 20 LWB 400BB 1996 GMC Sierra SL SWB 4X4 ExtCab 2001 Honda Civic EX (Mamma's Ride) "He stops talking only long enough to switch feet"

01-21-2006, 06:20 PM	#2
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	Re: Won't Start The first thing you need to find out is if the vehicle has spark and if it is getting fuel. You could first squirt a little carb cleaner or starting fluid down the carb and try to start it. If it attempts to start you have a fuel delievery problem. If there is no change check for spark. Pull off one spark plug wire from a spark plug, attach it to a spare spark plug, set it down on a grounded area, crank the engine over and observe. You want to see a nice sharp white/blue spark, if not you have a ignition problem. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

01-21-2006, 06:24 PM	#3
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: Won't Start Have you updated to HEI yet? __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

01-21-2006, 06:36 PM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Won't Start i'd say first you have to figure out if it's turning over or cranking or not / they are after all the same thing/// check for spark, no spark take dizz cap off inspect the points clean/replace and set the dwell/ also a good idea to clean/replace and gap sparkplugs// change the internal gas filter in the carb// get new air filter/// all this is called a TUNEUP and should be preformed on a regular basis __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

01-21-2006, 08:38 PM	#6
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Won't Start high energy ignition. it replaced the old points system __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

01-21-2006, 08:59 PM	#7
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: Won't Start HEI is the dizzy with the coil in the cap (big dizzy cap you can't miss it). If you had it I would tell you to check it, but since you don't you have to check your points, condenser and coil. That's if you're not getting spark. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"



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