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Starting issue 70 challenger #3169158 08/20/23 10:07 AM 08/20/23 10:07 AM
Joined: May 2010 Posts: 178 Illinois, USA S superbee69 OP member
superbee69 OP member S Joined: May 2010 Posts: 178 Illinois, USA	Using key, to start it turns over for what I think is a long time then it will start. Next time, Now I turn ignition to run , jump starter relay and it pops right off motor hardly turns over. What could be the issue ,new netural safety switch new relay.

Re: Starting issue 70 challenger [Re: superbee69] #3169163 08/20/23 10:40 AM 08/20/23 10:40 AM
Joined: May 2005 Posts: 4,733 Florida BDW master
BDW master Joined: May 2005 Posts: 4,733 Florida	After sitting for a while? Gas evaporating

Re: Starting issue 70 challenger [Re: BDW] #3169165 08/20/23 10:52 AM 08/20/23 10:52 AM
Joined: May 2010 Posts: 178 Illinois, USA S superbee69 OP member
superbee69 OP member S Joined: May 2010 Posts: 178 Illinois, USA	Back to back start ups

Re: Starting issue 70 challenger [Re: superbee69] #3169168 08/20/23 11:06 AM 08/20/23 11:06 AM
Joined: Jan 2003 Posts: 25,949 United Socialist States of Ame... T tboomer Too Many Posts
tboomer Too Many Posts T Joined: Jan 2003 Posts: 25,949 United Socialist States of Ame...	How's the neutral safety switch plug look? Need your rear end checked out? Contact Grizzly!!

Re: Starting issue 70 challenger [Re: BDW] #3169183 08/20/23 12:03 PM 08/20/23 12:03 PM
Joined: Feb 2014 Posts: 1,708 central il. S second 70 top fuel
second 70 top fuel S Joined: Feb 2014 Posts: 1,708 central il.	Originally Posted by BDW After sitting for a while? Gas evaporating I agree. If mine sets for more than 2 days the carbs go dry but once it gets gas and starts as long as it doesn't sit for a few days it will fire right up with the turn of the key.

Re: Starting issue 70 challenger [Re: tboomer] #3169185 08/20/23 12:13 PM 08/20/23 12:13 PM
Joined: Jan 2003 Posts: 20,813 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,813 A collage of whims	Not sure I understand the situation (or experiment). I'll assume it's a dead-stock vehicle. Starting the engine cold will always take a bit longer, as the fuel in the carb evaporates over time and pressure & supply from the pump has to get into the engine. If you're restarting it using the relay - or the key - it should light off quickly. Is the relay method an apples/apples comparison to the key method (cold/dormant start-up) ? If so, sounds like I'd look for a voltage drop or bad ground somewhere between ign switch & relay.

Re: Starting issue 70 challenger [Re: topside] #3169213 08/20/23 02:01 PM 08/20/23 02:01 PM
Joined: May 2010 Posts: 178 Illinois, USA S superbee69 OP member
superbee69 OP member S Joined: May 2010 Posts: 178 Illinois, USA	Yes warm running shut off. A few minutes later looking down carb 2pumps go in car sit down try n start cranks over a lot. Get out jump relay bam going, let it run shut it off, jump relay bam running , same process as before let it run shut it off sitt down try the key. Cram n crank it will eventually start but not well

Re: Starting issue 70 challenger [Re: superbee69] #3169215 08/20/23 02:06 PM 08/20/23 02:06 PM
Joined: May 2010 Posts: 178 Illinois, USA S superbee69 OP member
superbee69 OP member S Joined: May 2010 Posts: 178 Illinois, USA	Oh not stock 360 6 bbl. Msd ready to run dist that I’m not impressed with( you’re welcome for the plug, msd) Don’t think it’s fuel related. Thanks for any suggestions in advance Last edited by superbee69; 08/20/23 05:23 PM.

Re: Starting issue 70 challenger [Re: superbee69] #3169216 08/20/23 02:10 PM 08/20/23 02:10 PM
Joined: May 2010 Posts: 178 Illinois, USA S superbee69 OP member
superbee69 OP member S Joined: May 2010 Posts: 178 Illinois, USA	Just a beater

Re: Starting issue 70 challenger [Re: superbee69] #3169333 08/20/23 10:59 PM 08/20/23 10:59 PM
Joined: Aug 2003 Posts: 43,215 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,215 Bend,OR USA	Check the wiring to the ballast resistor with the key in the start position to see if it is sending 12 volts to the coil or not, you can pull the coil wire also and set it so it will fire to a ground to check it also when cranking on th starter besides using a volt meter I've seen more than one of these type issues cause by loose connection, bad wires and other issues Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Starting issue 70 challenger [Re: Cab_Burge] #3169388 08/21/23 11:36 AM 08/21/23 11:36 AM
Joined: Jan 2003 Posts: 215 Findlay R Ramman enthusiast
Ramman enthusiast R Joined: Jan 2003 Posts: 215 Findlay	[/size][size:14pt]When you try this starting procedure, do it by jumping the relay first. If it pops right off, the try the key. To see if it cranks and cranks before starting. Id probably ignore neutral safety switch comments. It wouldn't even engage the starter if that was faulty.

Re: Starting issue 70 challenger [Re: Ramman] #3169403 08/21/23 12:16 PM 08/21/23 12:16 PM
Joined: Jan 2003 Posts: 32,943 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,943 Grand Prairie,Texas	Ramman stop yelling please.

Re: Starting issue 70 challenger [Re: stumpy] #3169417 08/21/23 01:05 PM 08/21/23 01:05 PM
Joined: Mar 2006 Posts: 9,847 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,847 MI, usa	If it cranks, the neutral safety switch is functioning. And it's not the resistor itself, or it wouldn't run at all. The ballast resistor run circuit (blue wire) is only hot in the run posistion. It is not hot during crank. The ballast resistor feed in the crank position comes from the brown wire. By jumping the solenoid it is not using the crank circuit (brown wire) to feed the coil. Check for voltage at the coil + during crank. If it has none or is low investigate the crank cicuit from the ignition switch, thru the ballast output terminal, then to the coil. A second possibility is that it is fuel related. After 2 pumps and getting out to open the hood, then jumping the solenoid may give the fuel time to vaporize. If the wiring is good. Wait 30-45 seconds after you pump it before cranking. Doug

Re: Starting issue 70 challenger [Re: stumpy] #3169620 08/22/23 09:52 AM 08/22/23 09:52 AM
Joined: Jan 2003 Posts: 215 Findlay R Ramman enthusiast
Ramman enthusiast R Joined: Jan 2003 Posts: 215 Findlay	Not yelling. Not ALL CAPS. This is my special old person font. Take a breathe. Originally Posted by stumpy Ramman stop yelling please.

Re: Starting issue 70 challenger [Re: Ramman] #3169646 08/22/23 12:06 PM 08/22/23 12:06 PM
Joined: Jan 2003 Posts: 32,943 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,943 Grand Prairie,Texas	You do know you can increase the print size on your computer screen without making it so big here. I'm old and sure don't need huge print to read what is posted here.

Re: Starting issue 70 challenger [Re: stumpy] #3169686 08/22/23 01:52 PM 08/22/23 01:52 PM
Joined: May 2003 Posts: 3,074 N.W. Florida F Fat_Mike master
Fat_Mike master F Joined: May 2003 Posts: 3,074 N.W. Florida	Originally Posted by stumpy You do know you can increase the print size on your computer screen without making it so big here. I'm old and sure don't need huge print to read what is posted here. YOU CAN'T BE SERIOUS! - John McEnroe

Re: Starting issue 70 challenger [Re: Fat_Mike] #3169747 08/22/23 04:30 PM 08/22/23 04:30 PM
Joined: Jan 2003 Posts: 32,943 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,943 Grand Prairie,Texas	FAULT line judge.

Re: Starting issue 70 challenger [Re: stumpy] #3169982 08/23/23 07:56 PM 08/23/23 07:56 PM
Joined: Jan 2003 Posts: 15,401 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,401 Omaha Ne	Originally Posted by stumpy Ramman stop yelling please. Some people do not know that using all "CAPS" makes it harder to read for others and is considered "shouting" or yelling at another. For them it may be easier to read due to vision impairment or they just don't know the above computer etiquette www.tandmautomotive-omaha.com

Re: Starting issue 70 challenger [Re: dvw] #3169984 08/23/23 08:03 PM 08/23/23 08:03 PM
Joined: Jan 2003 Posts: 15,401 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,401 Omaha Ne	Originally Posted by dvw If it cranks, the neutral safety switch is functioning. And it's not the resistor itself, or it wouldn't run at all. The ballast resistor run circuit (blue wire) is only hot in the run posistion. It is not hot during crank. The ballast resistor feed in the crank position comes from the brown wire. By jumping the solenoid it is not using the crank circuit (brown wire) to feed the coil. Check for voltage at the coil + during crank. If it has none or is low investigate the crank cicuit from the ignition switch, thru the ballast output terminal, then to the coil. A second possibility is that it is fuel related. After 2 pumps and getting out to open the hood, then jumping the solenoid may give the fuel time to vaporize. If the wiring is good. Wait 30-45 seconds after you pump it before cranking. Doug Good advice from DVW and Cab. My only comment would be two pumps sound a bit excessive for a warm motor. Maybe depress the pedal 1/4 to 1/2 at most and hit the key. If no help then definitely head straight to the voltage checks keep us posted www.tandmautomotive-omaha.com

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