LT1 stumbling and missing now wont start
Launching!
Joined: Apr 2012
Posts: 233
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From: Crown point, IN
Yeah, take a look at the dipstick while your at it, I'm curious what the level is at.
Also, if you had six leaking injectors and were flooding it again and again, there's no doubt you have a hefty amount of fuel in your oil and should change it.
Also, if you had six leaking injectors and were flooding it again and again, there's no doubt you have a hefty amount of fuel in your oil and should change it.
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
I will do that tonite soon as I get home from work. What r u thinking? I did have the drivers side off since its easier to get to I was thinking maybe timing chain broke but all valves on that side seemed to be acting normal. No binding pinching or noise as the engine was cranked. I will also get a video of what it sounds like trying to cranks the it could help. But I checked oil too right after it came blowing out and no water in it and it was in between the holes on the dipstick. So not even max I usually kep my cars slightly under max
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
I did read something yesterday about the water pump temp sensor. But when I have tunerpro running with the engine off I was gettin 60degrees for the water temp not -40 or anything crazy. The stuff with the oil just started since I got the new injectors so it may have thinned the oil with the gas being in it from flooding. But like I said I am still under max on the dipstick. Would that sensor if unplugged let the car start?
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
I also tried without the mass air in it. Only way it would do more than just crank and crank was when I was pullin the plugs one at a time and had the injectors unplugged it would sort of run (also was holding the gas to the floor and had the fuel rails up a bit out so anything could escape there too.) soon as I got done with the plugs and put everything back in it just kept cranking. Actually if you look on YouTube n type in lt1 no start my car sounds like almost every other one on there.
So far
1. New fuel pump
2. New tank Due too some pretty nasty looking crap in the old one
Also fuel filters of course
3. New injectors
4. New opti
So far
1. New fuel pump
2. New tank Due too some pretty nasty looking crap in the old one
Also fuel filters of course
3. New injectors
4. New opti
Launching!
Joined: Nov 2012
Posts: 253
Likes: 0
From: Midwest City, Ok
I think whatever you problem is has to do with the strange oil shooting like waterhose phenomena. Have you sprayed any more starting fluid into the engine since the Accel injectors were installed? I would be curious if the car would start that way still.
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
Where the PVC goes to the throttle body the hose there was looking pretty rough so I put some regular rubber 1/2 hose from there up it doesn't fit quite as snug as the plastic/rubber hose from the factory but I figured there isn't really any pressure there so I didn't put clamps on it. That's where the oil was coming from also I don't know if you can see it in the video but there was a fair amount in the blades of the throttle body. Should I just spray the ether in the throttle body or pop lt a injector or two and put it in there
Launching!
Joined: Apr 2012
Posts: 233
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From: Crown point, IN
I would pull the throttle body appart and thoroughly clean it. And for the time being pull the pcv inlet tube off to avoid any more oil going in there.
Not saying that's your problem, but a bunch of oil in the TB is no bueno.
And have someone crank it with the pedal on the floor, leave the injectors in, and spray a little starting fluid directly into the throttle body.
Not saying that's your problem, but a bunch of oil in the TB is no bueno.
And have someone crank it with the pedal on the floor, leave the injectors in, and spray a little starting fluid directly into the throttle body.
Launching!
Joined: Apr 2012
Posts: 233
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From: Crown point, IN
http://youtu.be/RDqo9zAiWJs
Had a bit of time this morning
Had a bit of time this morning
Have you checked fuel pressure yet? Wondering if the regulators any good..
A quick tell is to pull the vacuum hose off the fpr/intake and see if there's any fuel in there, or if you can smell fumes.
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
It really almost sounds like it wants to fire with the pedal down. Try the starting fluid for sure.
Have you checked fuel pressure yet? Wondering if the regulators any good..
A quick tell is to pull the vacuum hose off the fpr/intake and see if there's any fuel in there, or if you can smell fumes.
Have you checked fuel pressure yet? Wondering if the regulators any good..
A quick tell is to pull the vacuum hose off the fpr/intake and see if there's any fuel in there, or if you can smell fumes.
Launching!
Joined: Apr 2012
Posts: 233
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From: Crown point, IN
It's a rare occasion for these cars to jump teeth.
And when the diaphragm in the regulator wears, it allows fuel to pass into the vacuum line. I would check fuel pressure again. Now that you have new injectors, if it still bleeds down, the regulator could be suspect.
And when the diaphragm in the regulator wears, it allows fuel to pass into the vacuum line. I would check fuel pressure again. Now that you have new injectors, if it still bleeds down, the regulator could be suspect.
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
okay I popped both valve covers. The oil is toast I'm guessing thats y it came flying out like it did. It smells like gas more than oil. So I am draining that tonight. Also I noticed cranking it for a few b4 I popped the covers I had the hose off the valve cover on the pass side, I am getting more exhaust smoke from there than out of the exhaust. Also almost all the pushrods and sides of the rockers arent really covered in oil they look like the exhaust is smoking up into them. none of the rods look bent and the springs are all still in one piece. so it's looking like I may have to pull the intake manifold and timing cover and see whats going on inside, since all the outer things are new. Really starting to think timing now after seeing all that smoke coming out of the intalke side of things, and rocker area. Also after cranking it for a good 10-15min the exhust manifolds are still ice cold( Not sure if its just cause its not started but I think it should be warming up some at least with all that cranking)????
Launching!
Joined: Nov 2012
Posts: 253
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From: Midwest City, Ok
As previously mentioned the chance of it jumping time is not very good. Much more likely that fuel pressure is low, or the Opti was installed incorrectly.
Have you tried the starting fluid again? Figuring out if the car will run when externally fueled will answer a lot of questions.
Have you tried the starting fluid again? Figuring out if the car will run when externally fueled will answer a lot of questions.
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
also just for the hell of it i had a piece of 4ga. amp wire and regrounded the icm spot where the ground strap runs from the head to the body. and then i put a wire from the positive on the battery to the fuel pump, and tried starting it. neither helped. and tried it on the battery negative and also from the batt. to the little block where it distributes the power around. Nothing different.
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Launching!
Joined: Aug 2012
Posts: 259
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From: Johnstown, Pa
Okay ether don't help at all. Also I just checked again I have a great spark, I cranked the tester I got from autozone out to 30 which is probably an inch gap and the spark jumped right to it. Nice and blue too.
Launching!
Joined: Nov 2012
Posts: 253
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From: Midwest City, Ok
Having spark and having spark at the proper time are two different things entirely. Did you replace the entire Optispark recently or just the cap and rotor?