cant figure it out

notsoslow50 · July 10th, 2007, 11:03 PM

ok so i just put a new 302 in my mustang. wired the ignition and the alternator then wired the electric fuel pump. when all was done i finally grounded the battery. now for some reason when i start the car it doesnt fully turn over it cranks but doesnt go. then when i pull the key out it keeps cranking so i had to unbolt the ground in order for it to shut off. everytime i ground the battery the car cranks over but doesnt fully start. i was trying to diagnos the problem for it not fully cranking over when this actually occured. i thought it was the carb not fully installed right. so i basically have two problems it doesnt fully turn over it just cranks and it keeps cranking until i unground it. any help please

neverfastenough1 · July 10th, 2007, 11:18 PM

Does it start cranking when you hook the ground up with the key off or only when you turn the key on? Electrical problems suck!

ryans88gt · July 11th, 2007, 02:48 AM

Solenoid is bad and has failed in the on position or your ignition switch has failed in the on position. You can check by removing the small wire from the top of the solenoid. If it still keeps on cranking, you need a new solenoid ($7 at autozone) if it stops when you pull the small wire off the solenoid, you have a failed ignition switch (don't know how much these cost)...

After you fix that problem...Check for spark at the plugs and fuel pressure. If you have both spark and fuel pressure, the reason it will not start is most likely timing. Try dropping the distributor at TDC and then advancing just a touch. This will usually get it running long enough to set the timing properly with a timing light.

notsoslow50 · July 11th, 2007, 04:40 PM

when i checked for spark at the coil i got nothing while trying to crank it over..fuel is going into the carb so im doubting the possibility its a fuel problem unless i set the carb up wrong..idk..but yeahh no spark going to the coil

notsoslow50 · July 11th, 2007, 04:44 PM

when i checked for spark at the coil i got nothing while trying to crank it over..fuel is going into the carb so im doubting the possibility its a fuel problem unless i set the carb up wrong..idk..but yeahh no spark going to the coil

ryans88gt · July 11th, 2007, 05:44 PM

Well, then you have an ignition problem. Could be your ignition switch is bad and is causing both problems...

neverfastenough1 · July 12th, 2007, 02:48 AM

You have no spark to the coil, but you have continuous fire to the starter? Hmmm, sounds like the ignition switch is wired wrong.

notsoslow50 · July 12th, 2007, 10:25 PM

yeahh ill have to go through the wires this weekend and see whats wrong..i dont wanna put the solenoid on and have the dame problem..it was freaky..i was rushing to unground it while it was still trying ti turn over

July 10th, 2007, 11:03 PM	#1
notsoslow50 Regular Join Date: Jul 2007 Location: Pennsylvania Posts: 338 iTrader: 0 reviews	cant figure it out ok so i just put a new 302 in my mustang. wired the ignition and the alternator then wired the electric fuel pump. when all was done i finally grounded the battery. now for some reason when i start the car it doesnt fully turn over it cranks but doesnt go. then when i pull the key out it keeps cranking so i had to unbolt the ground in order for it to shut off. everytime i ground the battery the car cranks over but doesnt fully start. i was trying to diagnos the problem for it not fully cranking over when this actually occured. i thought it was the carb not fully installed right. so i basically have two problems it doesnt fully turn over it just cranks and it keeps cranking until i unground it. any help please

July 10th, 2007, 11:18 PM	#2
neverfastenough1 Hardcore Enthusiast 2002 Mustang GT Join Date: May 2007 Location: Savannah, Ga Posts: 2,777 iTrader: 3 reviews	Does it start cranking when you hook the ground up with the key off or only when you turn the key on? Electrical problems suck! __________________

July 11th, 2007, 04:40 PM	#4
notsoslow50 Regular Join Date: Jul 2007 Location: Pennsylvania Posts: 338 iTrader: 0 reviews	when i checked for spark at the coil i got nothing while trying to crank it over..fuel is going into the carb so im doubting the possibility its a fuel problem unless i set the carb up wrong..idk..but yeahh no spark going to the coil __________________

July 11th, 2007, 04:44 PM	#5
notsoslow50 Regular Join Date: Jul 2007 Location: Pennsylvania Posts: 338 iTrader: 0 reviews	when i checked for spark at the coil i got nothing while trying to crank it over..fuel is going into the carb so im doubting the possibility its a fuel problem unless i set the carb up wrong..idk..but yeahh no spark going to the coil __________________

July 11th, 2007, 05:44 PM	#6
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,627 iTrader: 0 reviews	Well, then you have an ignition problem. Could be your ignition switch is bad and is causing both problems... __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

July 11th, 2007, 02:48 AM	#3
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,627 iTrader: 0 reviews	Solenoid is bad and has failed in the on position or your ignition switch has failed in the on position. You can check by removing the small wire from the top of the solenoid. If it still keeps on cranking, you need a new solenoid ($7 at autozone) if it stops when you pull the small wire off the solenoid, you have a failed ignition switch (don't know how much these cost)... After you fix that problem...Check for spark at the plugs and fuel pressure. If you have both spark and fuel pressure, the reason it will not start is most likely timing. Try dropping the distributor at TDC and then advancing just a touch. This will usually get it running long enough to set the timing properly with a timing light.

July 12th, 2007, 02:48 AM	#7
neverfastenough1 Hardcore Enthusiast 2002 Mustang GT Join Date: May 2007 Location: Savannah, Ga Posts: 2,777 iTrader: 3 reviews	You have no spark to the coil, but you have continuous fire to the starter? Hmmm, sounds like the ignition switch is wired wrong. __________________

July 12th, 2007, 10:25 PM	#8
notsoslow50 Regular Join Date: Jul 2007 Location: Pennsylvania Posts: 338 iTrader: 0 reviews	yeahh ill have to go through the wires this weekend and see whats wrong..i dont wanna put the solenoid on and have the dame problem..it was freaky..i was rushing to unground it while it was still trying ti turn over __________________

Remove Advertisements Sponsored Links
Forums at Modded Mustangs Advertisement Advertisement

Threads Similar to: cant figure it out
Thread	Thread Starter	Forum	Replies	Last Post
go figure!	P.O.S-GT	5.0 Mustangs	3	June 22nd, 2007 11:13 AM
Figure this out...	Foxstang90	5.0 Mustangs	3	February 18th, 2007 01:15 AM
Trying to figure out this problem	Plays With Squirrels	96-98	4	January 10th, 2007 12:07 AM
Need Help... Cant Figure Out	mustangrebuilder	Classic Mustangs	5	September 7th, 2006 12:48 AM
cant figure it out	ttop5.0	5.0 Mustangs	2	August 26th, 2006 07:54 PM

All times are GMT -4. The time now is 04:38 AM.
Contact Us - Modded Mustangs - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.