Question about 1986 Pontiac Grand Prix

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Popping and smoking - 1986 Pontiac Grand Prix

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Sound like something happen to your valves

Posted on Aug 01, 2009

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What is making a popping sound from my engine and making it smoke and sputter?


digging in the internet I found this:
too much fuel blows black smoke - brake fluid and auto trans fluid burns white - water makes steam - burning oil makes blue smoke you nead to work out witch one of you fluids are droping in level

hope it works :)

Mar 15, 2016 | 1995 Buick Regal

1 Answer

Went to start car, made LOUD POP NOISE, then smoke poured out from under hood?? Is my car even fixable??


Depends on what went pop. What color was the smoke? If it was white and the engine was hot you may be lucky and just have blown a radiator hose. If the smoke was black or blue that would be more in line with an oil leak which may still not be the end of your car. You need to have someone look under the hook and determine where the pop sound came from.

Jul 27, 2015 | 1998 Buick Regal

2 Answers

Blowing smoke


White smoke usually is coolant burning. Is engine loosing coolant? Small pop could have been head cracking, or possibly head gasket failing. If you are loosing coolant, time to remove the head to see what failed.

Apr 07, 2015 | Cars & Trucks

2 Answers

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

Check engine light goes on I hear a pop pop it chokes and than starts


Take it to your transmission people to find out why the pop. Step 2 will be if not fixed, the smoke issue.

Jul 17, 2013 | Cars & Trucks

1 Answer

Popping sound then smoking under hood


that could be anything but im guess you have a egr problem but that dont really explain the smoking now does it hmm so open your hood and see if u can find the sound and smoke and then get back to us.

Nov 15, 2010 | 1997 Volkswagen Passat

1 Answer

My toyota Lucida diesel engine runs good but ocasionally gives a pop, pop, pop,sound with white then black smoke and looses power .


Probably the oil seal for the valves on the cylinder head are not good,oil is passing through then comes in the cylinder chamber,when it burn the engine oil it makes that white smoke.

Feb 21, 2010 | 1992 Toyota Previa

1 Answer

Pops black smoke. Gets better after runs a while but still smoky.


usaully black smoke indicates a rich running engine, check o2 sensors.

May 11, 2009 | Toyota Land Cruiser Cars & Trucks

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