white smoke, wants to die. help!!
04-21-2013, 09:16 PM
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white smoke, wants to die. help!! start with mods it has lt4 hot cam kit 1.6 rollers lt4 springs vacuum accell opti msd coil summit 8.5 wires accell copper core plugs pacesetter mid length headers y pipe flow master American thunder cat back bigger injectors egr air delete
I also just did head gaskets valve job head job ect.
now what I know that needs attending to
bad o2 sensors
when I installed new opti the o ring seal started leaking
return fuel line leak
low coolant sensor bad connection corrosion
inconsistent reading on oil pressure(can tap own dash some times and gauge starts working again sometimes not)
was told car was tuned for the cam injectors long tube headers x pipe to dump egr air delete. I believe it also had a 58mm throttle body on it cause intake is ported and had stock tb on it when I bought it.
I have changed the headers and exhaust from little restriction to alot and don't know if that would do anything.
so to the problem that just randomly started a few days after I installed the cat back and then strut tower brace so I drove her hard and parked her for the night next day It started up idled for 5 secs then stalled held rpm at 2000 for 30 secs then it would idle but die under load. after it warmed up it would idle until I revved it then it would search from 650-1500rpm.
while this is happening a slight white smoke coming out of the exhaust smelled more like gas then oil, more smoke when revved
intake manifold has smoke in it after turned off and I open butterflies and there's a coating of oil in the intake
no motor noise as in knocks ticks ect.
just fixed two vacuum leaks after problem started
any ideas? I'm thinking fix o2s oil leak clean opti throttle body and tune?
any help would be great thanks
I also just did head gaskets valve job head job ect.
now what I know that needs attending to
bad o2 sensors
when I installed new opti the o ring seal started leaking
return fuel line leak
low coolant sensor bad connection corrosion
inconsistent reading on oil pressure(can tap own dash some times and gauge starts working again sometimes not)
was told car was tuned for the cam injectors long tube headers x pipe to dump egr air delete. I believe it also had a 58mm throttle body on it cause intake is ported and had stock tb on it when I bought it.
I have changed the headers and exhaust from little restriction to alot and don't know if that would do anything.
so to the problem that just randomly started a few days after I installed the cat back and then strut tower brace so I drove her hard and parked her for the night next day It started up idled for 5 secs then stalled held rpm at 2000 for 30 secs then it would idle but die under load. after it warmed up it would idle until I revved it then it would search from 650-1500rpm.
while this is happening a slight white smoke coming out of the exhaust smelled more like gas then oil, more smoke when revved
intake manifold has smoke in it after turned off and I open butterflies and there's a coating of oil in the intake
no motor noise as in knocks ticks ect.
just fixed two vacuum leaks after problem started
any ideas? I'm thinking fix o2s oil leak clean opti throttle body and tune?
any help would be great thanks
Last edited by tgk4880; 04-21-2013 at 09:24 PM.
04-22-2013, 12:01 PM
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Just sold my lt. But I had bad head gaskets I knew when i had white smoke. Check your timing and the maybe do and intake gasket and fix that oil pressure sensor as well
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04-24-2013, 02:10 PM
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That makes me wonder because i took my accell opti back off a week after i installed it and one of the small two screws inside was off and rattled around when i shook opti i disassymbled and reinstalled screw as tight as i could.... Whould that make it search at idle and dump fuel in combustion chamber???
04-24-2013, 05:45 PM
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Didn't see your mention of O2's. How does the car run when cold?
A loose rotor can cause unburnt fuel to pass into the exhaust. As stated, smoke in the intake manifold sounds more like a timing issue. Perhaps opti related. Don't know. Have you messed around with the valve train at all?
A loose rotor can cause unburnt fuel to pass into the exhaust. As stated, smoke in the intake manifold sounds more like a timing issue. Perhaps opti related. Don't know. Have you messed around with the valve train at all?
04-24-2013, 11:10 PM
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Its got a cam 1.6 rockers ported heads....
I got a valve job decked heads valve seals
Opti wires plugs exhaust 2000 miles ago ran fine till the other day. Start up when it was 25 out choke on ilde fine
I got a valve job decked heads valve seals
Opti wires plugs exhaust 2000 miles ago ran fine till the other day. Start up when it was 25 out choke on ilde fine
04-25-2013, 07:23 AM
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Start up when it was 25 out choke on ilde fine
04-26-2013, 05:02 PM
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It was 25 degrees out i started it, idled at like 2000 while cold idled fine when choke was on when computer idled down car it would search from 650 to 1500 rpms normally ran at 1000-1100 rpms
04-26-2013, 09:35 PM
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Cammed cant really hear a miss did have a small intermediate miss when driving at about 1800-2500 rpm
Stumbles and catches itself but while driving, under load at low rpm then jumping on it could hear it back fire sounded like in the intake
Stumbles and catches itself but while driving, under load at low rpm then jumping on it could hear it back fire sounded like in the intake
04-27-2013, 07:32 PM
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Finally had some time to mess with this problem so i tore off the opti and sure as **** one screw backed out on half way out put some lock tight on then finishing it up tom believe thats the problem
11-21-2017, 01:20 PM
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[QUOTE=tgk4880;17336385]start with mods it has lt4 hot cam kit 1.6 rollers lt4 springs vacuum accell opti msd coil summit 8.5 wires accell copper core plugs pacesetter mid length headers y pipe flow master American thunder cat back bigger injectors egr air delete
I also just did head gaskets valve job head job ect.
now what I know that needs attending to
bad o2 sensors
when I installed new opti the o ring seal started leaking
return fuel line leak
low coolant sensor bad connection corrosion
inconsistent reading on oil pressure(can tap own dash some times and gauge starts working again sometimes not)
was told car was tuned for the cam injectors long tube headers x pipe to dump egr air delete. I believe it also had a 58mm throttle body on it cause intake is ported and had stock tb on it when I bought it.
I have changed the headers and exhaust from little restriction to alot and don't know if that would do anything.
so to the problem that just randomly started a few days after I installed the cat back and then strut tower brace so I drove her hard and parked her for the night next day It started up idled for 5 secs then stalled held rpm at 2000 for 30 secs then it would idle but die under load. after it warmed up it would idle until I revved it then it would search from 650-1500rpm.
while this is happening a slight white smoke coming out of the exhaust smelled more like gas then oil, more smoke when revved
intake manifold has smoke in it after turned off and I open butterflies and there's a coating of oil in the intake
no motor noise as in knocks ticks ect.
just fixed two vacuum leaks after problem started
any ideas? I'm thinking fix o2s oil leak clean opti throttle body and tune?
any help would be great thanks[/QUOT
did you fix this issue?
I also just did head gaskets valve job head job ect.
now what I know that needs attending to
bad o2 sensors
when I installed new opti the o ring seal started leaking
return fuel line leak
low coolant sensor bad connection corrosion
inconsistent reading on oil pressure(can tap own dash some times and gauge starts working again sometimes not)
was told car was tuned for the cam injectors long tube headers x pipe to dump egr air delete. I believe it also had a 58mm throttle body on it cause intake is ported and had stock tb on it when I bought it.
I have changed the headers and exhaust from little restriction to alot and don't know if that would do anything.
so to the problem that just randomly started a few days after I installed the cat back and then strut tower brace so I drove her hard and parked her for the night next day It started up idled for 5 secs then stalled held rpm at 2000 for 30 secs then it would idle but die under load. after it warmed up it would idle until I revved it then it would search from 650-1500rpm.
while this is happening a slight white smoke coming out of the exhaust smelled more like gas then oil, more smoke when revved
intake manifold has smoke in it after turned off and I open butterflies and there's a coating of oil in the intake
no motor noise as in knocks ticks ect.
just fixed two vacuum leaks after problem started
any ideas? I'm thinking fix o2s oil leak clean opti throttle body and tune?
any help would be great thanks[/QUOT
did you fix this issue?
