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94z71 smokes when first crank or idolin - 1500 Chevrolet Cars & Trucks

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Sounds like valve stem seals or valve guides. The smoke would be blue, also going down hill against compression... Upon acceleration, you would see a puff of blue smoke.

Posted on Mar 15, 2011

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1990 Geo metro popped and poured white smoke out


its a GEO POPPER.
"no oil up on crank case"

no idea what that means.??????
yes PCV valve. do clog.

white smoke at end if tail pipe.
you didnt say where,?

white smoke has 2 reasons.(tail end)
Steam and oil.
steam goes away fast and looks just like moms tea pot. and smells sweet, like the antifreeze in engine. (rad cap off ,sniff sniff, cold engine)

oil burning, smoke is very very slow to go away.
and smells like , blush burned oil.
if not sure what burn oil looks like or smells like
take out the dip stick on a hot engine
let it drip to the hot exhaust manifold there.
now you know. and is a key diagnostic skill.


no oil seen on dip stick end?, you mean that?
well you need to keep that from happening,
doing weekly service, and for sure old cars.
26 years old.

low oil invites blowing up a good engine.
for sure.
if it did that smoke is oil
if it did 10x worse, both .

my wild guess is you meant to say
I didnt see oil leaking on top of engine.
right?

if the engine backwires to the air cleaner
you forgot to replace the cam belt every 60k miles
the pcv will also be clogged, on cars not getting proper service, super colon.
if the PCV clogs,engine may leak oil bad.

this engine btw is a G10 3 cylinder.
with TBI injection.
we can talk TBI all day, owned one.

white smoke can come from many places
exhaust manifold, leaks of oil can land there
engine can back fire to air cleaner making smoke.
tail end.
steam is much worse. ill not delve in to that yet/.

Apr 04, 2014 | 1990 Geo Metro

1 Answer

What could cause a 94z71 4x4 350 to idle fine but once you put it gaer it acts like it chokes itself out or sucking to much air


Could be a faulty idle air control valve or a dirty throttle body.
The computer controls idle speed by regulating how much air enters the intake thru the throttle body.

Mar 02, 2013 | 1990 Chevrolet K2500

2 Answers

My s10 emits white smoke when cranked...how do I stop it from smoking when cranked?


White smoke is usually coolant being burned in the cylinders.
If that is the case, I would expect to find a leaking head gasket or other serious engine problem.
Are you adding coolant or oil during the month ?

Jul 15, 2012 | 1992 Chevrolet S-10

1 Answer

Car starts but revs for a few seconds with lots of black smoke and then cuts out have disconected exhaust from manifold but no change


Is this a diesel TDI PD ?? If so i had the same problem with one of these TDI engines and traced it to the crank sensor signal implausable. The revs would start increasing with no pressure on the throttle, lots of black smoke and then cut out. The crank sensor wiring was at fault in this case. The ECU didnt know where the crank position was in relation to the camshaft and was guessing when to inject the fuel. Hence the black smoke ! Hope this is of some use.

Nov 08, 2010 | 2000 Audi A4

1 Answer

97 Bonneville wont crank


white smoke is an indication of a leaking headgasket. if this is the case the coolant could have fouled out the plugs

Mar 29, 2010 | 1997 Pontiac Bonneville

2 Answers

My 2004 ford 450 superduty deisal wont start in the mornings and when it cranks over black smoke comes out the tail pipe


If it finally starts after a lot of cranking, I'd have a look at the glow plugs. If they've not been changed since the truck was built, they've probably come to the end of their life.

Mar 16, 2010 | Ford F-450 Cars & Trucks

1 Answer

I put no-smoke in my crankcase to help with occasional exhaust smoke. When I cranked it after adding it smoked white smoke really bad. Can this be normal?


Unfortunately, with using that product, yes, it is normal... That stuff is not good for any vehicle... What kind of car do you have? Has it had problems with smoking? Black or white smoke? Does the smoke have an odor?

Sep 16, 2009 | Saturn SC2 Cars & Trucks

1 Answer

I gotta floor my 1992 bronco 5.0l to crank it


white smoke? Thats an indication of water getting into cylinders. May have a small head gsket leak. Metals expand when heated which explains why it stops smoking after warming up. Have some one pressurize the cooling system when engine is cold, and search or listen for leaks. Pressure gauge on tester will drop in pressure if leak is present.

Jul 05, 2009 | 1992 Ford Bronco

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