HELP! tuned up truck andkey wont turn engine off - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dinnut · 10-25-2003, 06:25 PM

i put a new distributor cap, rotor, wires, and bosch platinum 4 tip plugs. and also inline fuel filter and it fired right up. runs 10x better now hands down. i went to turn it off and turned the key off pulled it out and the truck was still running. i pulled negative battery then positive and it kept running meaning alternator was keeping it alive. i finally pulled the wire off of the hei and the truck turned off. i have been doing this all day now and cant figure out why the truck wont turn off. the truck is alot faster now. i pushed it to 60 on a backroad with ease. the hei was on the truck before i bought it.i told the guy at oreilly and he guessed and looked for electronic ignition parts for an 85 chevy truck. on the hei the power source goes into 1 of 2 slots on the side. it wont go into the left sight but it go into the right. anybody please help me. could the thing where you stick the key into have gone bad ( eh i forget the name now)? HELP!

cableguy0 · 10-25-2003, 06:27 PM

sounds to me like your ignition switch is sticking and it just happened to go bad after you did the tune up

dinnut · 10-25-2003, 06:30 PM

thats what i thought. anybody else?

jef5150 · 10-25-2003, 07:01 PM

sounds like it,,,,,,if your switch is bad and its leaveing ignition "ON",then your windshield wipers "should"work with the key in the"off" position ,,.....jeff

**Classic Heartbeat** · 10-25-2003, 07:24 PM

Is your HEI power wire hooked up to ignition unfused? Or is it hooked up somewhere that has power even when the ignition is turned off? WES www.ClassicHeartbeat.com

**68 Stepside** · 10-25-2003, 08:19 PM

Try what jef said, see if your wipers still work with the key in the off postion. Also try the turn signals. Also, check to make sure your HEI wire isn't hooked to a constant hot power source, like Wes said.

dinnut · 10-25-2003, 08:50 PM

i bought a new ignition switch and will install it tomorrow. i dont know about the hot power source. i didnt install it and the wiring on this truck is home cooked. the wiring is a big mess of wires going everywhere. i really need to rewire it

dinnut · 10-26-2003, 09:05 PM

okay. i went to take the lock cylinder out of the old ignition switch and it wouldnt come out so i bought a new lock cylinder from oreilly. but i think it is for a car so i had to shave the sides on the front to get the bezel to go over it. before i shaved it and completely installed it i started the truck and turned it off using the key. when i finished the whole deal i started the truck and the key would not turn it off. what the hell is going on? i cracked the connector that goes onto the hei providing it with power from turning off the truck that way. i really need to figure this out. at first the key turned it off but then after i installed it it wouldnt turn it off.

i went to a swapmeet today at delmar. didnt get there till 3 bc of this whole mess. only like 5-6 people left their by the time i got there. i got some good deals bc people wanted to move stuff. i got 2 exhaust manifolds in real good condition for 69-72 chevy trucks the guy told me. he wanted 60 i got the 2 for 40. 20 bucks a piece for exh.man. is real good in the condition these are in. i got 2 orange sidemarkers in decent condition for a buck. i also got a chrome flywheel cover for 20.

dinnut · 10-26-2003, 09:21 PM

ttt

**68 Stepside** · 10-26-2003, 09:24 PM

hmmm...perhaps one of the wires going into the ign switch is shot, and only getting connection when you have it in a certain position? (IE: switch not installed in the bezel) I'm not sure what else could be causing it....

68LSS1 · 10-26-2003, 09:32 PM

I'd check the wiring at the cap for the HEI like someone else suggested. While you make sure it's wired right also make sure that none of the connectors are shorting against each other.
Edit for: If I remember right some HEI caps are labeled something like C-, GRD and C+. The C+ should be from the ignition switch.

cdowns · 10-26-2003, 09:36 PM

if you have the newer 1wire altenator this can happen

dinnut · 10-26-2003, 09:42 PM

i cannot plug the power into the other slot on the hei. it will just not go. it is completely possible the wire is only making contact at a certain angle and messing with all the wires like did made it loose the connection

dinnut · 10-26-2003, 10:08 PM

ttt

gmc67swb · 10-26-2003, 10:35 PM

IF YOU ARE STRAPPED AND HAVE TO USE THE TRUCK EVERY DAY LIKE I DO, YOU CAN PUT A TOGGLE SWITCH IN LINE ON YOUR HOT TO YOUR HEI. I KNOW THIS ISN'T FIXING THE PROBLEM, BUT IT WILL REMEDY IT UNTIL YOU CAN FIGURE IT OUT. IT SURE BEATS THE HELL OUT OF POPPING THE HOOD AND YANKING THE HOT WIRE OFF THE HEI EVERY TIME YOU SHUT THE MOTOR OFF.

10-25-2003, 06:25 PM	#1
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	HELP! tuned up truck andkey wont turn engine off i put a new distributor cap, rotor, wires, and bosch platinum 4 tip plugs. and also inline fuel filter and it fired right up. runs 10x better now hands down. i went to turn it off and turned the key off pulled it out and the truck was still running. i pulled negative battery then positive and it kept running meaning alternator was keeping it alive. i finally pulled the wire off of the hei and the truck turned off. i have been doing this all day now and cant figure out why the truck wont turn off. the truck is alot faster now. i pushed it to 60 on a backroad with ease. the hei was on the truck before i bought it.i told the guy at oreilly and he guessed and looked for electronic ignition parts for an 85 chevy truck. on the hei the power source goes into 1 of 2 slots on the side. it wont go into the left sight but it go into the right. anybody please help me. could the thing where you stick the key into have gone bad ( eh i forget the name now)? HELP! __________________ 70 longbed 496/th400/Ford 9"

10-25-2003, 06:27 PM	#2
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	sounds to me like your ignition switch is sticking and it just happened to go bad after you did the tune up __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

10-25-2003, 06:30 PM	#3
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	thats what i thought. anybody else? __________________ 70 longbed 496/th400/Ford 9"

10-25-2003, 07:24 PM	#5
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	Is your HEI power wire hooked up to ignition unfused? Or is it hooked up somewhere that has power even when the ignition is turned off? WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

10-25-2003, 08:19 PM	#6
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,690	Try what jef said, see if your wipers still work with the key in the off postion. Also try the turn signals. Also, check to make sure your HEI wire isn't hooked to a constant hot power source, like Wes said. __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

10-25-2003, 07:01 PM	#4
jef5150 Inline 69 Join Date: Apr 2003 Location: valleysprings,california Posts: 1,018	sounds like it,,,,,,if your switch is bad and its leaveing ignition "ON",then your windshield wipers "should"work with the key in the"off" position ,,.....jeff

10-25-2003, 08:50 PM	#7
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	i bought a new ignition switch and will install it tomorrow. i dont know about the hot power source. i didnt install it and the wiring on this truck is home cooked. the wiring is a big mess of wires going everywhere. i really need to rewire it __________________ 70 longbed 496/th400/Ford 9"

10-26-2003, 09:05 PM	#8
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	okay. i went to take the lock cylinder out of the old ignition switch and it wouldnt come out so i bought a new lock cylinder from oreilly. but i think it is for a car so i had to shave the sides on the front to get the bezel to go over it. before i shaved it and completely installed it i started the truck and turned it off using the key. when i finished the whole deal i started the truck and the key would not turn it off. what the hell is going on? i cracked the connector that goes onto the hei providing it with power from turning off the truck that way. i really need to figure this out. at first the key turned it off but then after i installed it it wouldnt turn it off. i went to a swapmeet today at delmar. didnt get there till 3 bc of this whole mess. only like 5-6 people left their by the time i got there. i got some good deals bc people wanted to move stuff. i got 2 exhaust manifolds in real good condition for 69-72 chevy trucks the guy told me. he wanted 60 i got the 2 for 40. 20 bucks a piece for exh.man. is real good in the condition these are in. i got 2 orange sidemarkers in decent condition for a buck. i also got a chrome flywheel cover for 20. __________________ 70 longbed 496/th400/Ford 9"

10-26-2003, 09:21 PM	#9
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	ttt __________________ 70 longbed 496/th400/Ford 9"

10-26-2003, 09:24 PM	#10
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,690	hmmm...perhaps one of the wires going into the ign switch is shot, and only getting connection when you have it in a certain position? (IE: switch not installed in the bezel) I'm not sure what else could be causing it.... __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

10-26-2003, 09:32 PM	#11
68LSS1 Registered User Join Date: Dec 2002 Location: Tampa Posts: 1,191	I'd check the wiring at the cap for the HEI like someone else suggested. While you make sure it's wired right also make sure that none of the connectors are shorting against each other. Edit for: If I remember right some HEI caps are labeled something like C-, GRD and C+. The C+ should be from the ignition switch. __________________ '68 Short Step LS1/T56, Hydratech, Fatman Fabrications Stage III, Baer, Hot Rods to Hell, US Body, S&W, etc Last edited by 68LSS1; 10-26-2003 at 09:35 PM.

10-26-2003, 09:36 PM	#12
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	if you have the newer 1wire altenator this can happen __________________ 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

10-26-2003, 09:42 PM	#13
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	i cannot plug the power into the other slot on the hei. it will just not go. it is completely possible the wire is only making contact at a certain angle and messing with all the wires like did made it loose the connection __________________ 70 longbed 496/th400/Ford 9"

10-26-2003, 10:08 PM	#14
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	ttt __________________ 70 longbed 496/th400/Ford 9"

10-26-2003, 10:35 PM	#15
gmc67swb Registered User Join Date: Feb 2003 Location: Mesquite, Tx Posts: 396	IF YOU ARE STRAPPED AND HAVE TO USE THE TRUCK EVERY DAY LIKE I DO, YOU CAN PUT A TOGGLE SWITCH IN LINE ON YOUR HOT TO YOUR HEI. I KNOW THIS ISN'T FIXING THE PROBLEM, BUT IT WILL REMEDY IT UNTIL YOU CAN FIGURE IT OUT. IT SURE BEATS THE HELL OUT OF POPPING THE HOOD AND YANKING THE HOT WIRE OFF THE HEI EVERY TIME YOU SHUT THE MOTOR OFF. __________________ GM 330HP/350, Magnuson 122HH, Tremec TKO 5spd



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