Took it for a ride
Thread Starter
On The Tree
Joined: Aug 2005
Posts: 108
Likes: 0
From: NJ
Took it for a ride Today was a nice day and took the camaro out for a ride and after couple of miles LS1 start studdering and came to a stop. no start. It was fine whole summer and I did not drove the car in a couple of months. This morning battery was low and I had to gave a jump start but I connect the battery on the wrong posts got a litkle spark and correct it . It started fine and died on me on the road. What could that bee? Any Ideas? Thanks
Launching!
Joined: Feb 2006
Posts: 273
Likes: 0
From: shasta lake, north cali
alternator/ battery maybe. sounds like when the alternator was going out in my truck. it ran everything for a few miles but the fuel injection and everything sucks the power out of the battery pretty quickly if it is not being charged. i would check the alternator and go from there. when you tried to restart it was it cranking over and everything and just no fire?
guy i work with just had to get a new pump in his van. i didn't think it was the problem since we could here it hum, but after towing it to a dealer, sure enough, it was bad. replaced it and it started right up. could be a possibility. although, if your ground was bad, you probably wouldn't be getting current to flow through it, hence it wouldn't hum at all. hope you figure it out though. sucks figuring elec problems out, that's one reason why i'm converting to carb by spring! lol.
Trending Topics
You can check for fuel pressure at the rail. You can see if you get a good spray out of the shrader valve, covered with a towel... Or you can rent a fuel pressure gauge from autozone to check for correct pressure.
Even tho your gauge showed 14volts, Ide still be blaming the charging system. There is a single, small gauge wire that comes from the PCM and tells the Alt. to charge. Its fragile, and prone to burning. Mine would go off and on. Sometimes it would charge fine...sometimes the gauge would show 11volts until I wiggled that wire. As mentioned above it doesnt take much to drain the battery if the alt isnt up to snuff.
Also, Ide be a little worried since you hooked the battery up backwards... You should check all your fuses, and all your grounds, and everythign you can think of. If there isan autozone near you...take your alt off and get it tested. Its free and you can pretty much rule that out.
Let us know what you find!
Justin
Even tho your gauge showed 14volts, Ide still be blaming the charging system. There is a single, small gauge wire that comes from the PCM and tells the Alt. to charge. Its fragile, and prone to burning. Mine would go off and on. Sometimes it would charge fine...sometimes the gauge would show 11volts until I wiggled that wire. As mentioned above it doesnt take much to drain the battery if the alt isnt up to snuff.
Also, Ide be a little worried since you hooked the battery up backwards... You should check all your fuses, and all your grounds, and everythign you can think of. If there isan autozone near you...take your alt off and get it tested. Its free and you can pretty much rule that out.
Let us know what you find!
Justin
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
On The Tree
Joined: Aug 2005
Posts: 108
Likes: 0
From: NJ
I'm suspicious about fuel pump too. About connecting the battery wrong; if that was the problem I dont think it would start. Well I wiil plat with it tomorrow and see whats wrong.
Thanks for all the suggestions and help guys.
Thanks for all the suggestions and help guys.
Thread Starter
On The Tree
Joined: Aug 2005
Posts: 108
Likes: 0
From: NJ
Today I tested the fuel pressure on the rail while priming / cranking the engine and 0 pressure. That's sure is a fuel pump problem right? Pump is priming but no pressure. I will take it out and test it again to see what is the problem.
Originally Posted by pt67camarols1
Today I tested the fuel pressure on the rail while priming / cranking the engine and 0 pressure. That's sure is a fuel pump problem right? Pump is priming but no pressure. I will take it out and test it again to see what is the problem.
yes if your not getting any pressure while cranking and the pump is suppose to be on
ok, here's one more option. i had this problem with mine where it would crank & crank, but it would not fire & no reading on the fuel press gauge. i have 2 relays supplying power to the pcm. hold 1 in each hand and have someone crank the motor. when i did it, one clicked and the other did not, so i swapped the relays with the plugs and had him crank it again. this time the same relay clicked in the opposite plug and the one that did not click the first time, still didn't in the opposite plug. a quick trip to Autozone & $15.28 later, pluged the new one in, in place of the one not clicking, and boom it fired right up.
good luck.
good luck.
Thread Starter
On The Tree
Joined: Aug 2005
Posts: 108
Likes: 0
From: NJ
Originally Posted by PRAY HRD
ok, here's one more option. i had this problem with mine where it would crank & crank, but it would not fire & no reading on the fuel press gauge. i have 2 relays supplying power to the pcm. hold 1 in each hand and have someone crank the motor. when i did it, one clicked and the other did not, so i swapped the relays with the plugs and had him crank it again. this time the same relay clicked in the opposite plug and the one that did not click the first time, still didn't in the opposite plug. a quick trip to Autozone & $15.28 later, pluged the new one in, in place of the one not clicking, and boom it fired right up.
good luck.
good luck.
How would you explain to me , no pressure on the pump and bad relay for the pcm. Did I miis something here? Pls explain
Originally Posted by pt67camarols1
How would you explain to me , no pressure on the pump and bad relay for the pcm. Did I miis something here? Pls explain
the pcm activates the relay for the pump, at least that's the proper way to wire it. when you click the key on it should prime, then stop after a couple seconds. then when you begin to crank the pcm activates the pump again.
when you say the pump primes do you mean it builds pressure when it primes and the engine is not turning over? or do you just hear the pump click on a for a few seconds then off?
Originally Posted by pt67camarols1
Pump primes and engine turns over but no start. No pressure. Allso no pressure when it is priming when the key turned half way. I might have to check relay for the pump.
if you hear the pump run but have no pressure it's either a bad pump or bad pressure regulator (or leak but you'd know that already).