To cut my long story short, I had a overheated Honda Civic 95, that had
its "Check Engine" light come on
and also some *white smoke* from under the hood. I got the car checked
at one car place, lets call this
place A, and they checked for Hydrocarbons in the coolant and the
number (i am not sure whay the number is)
was really high and they came to conclusion that my head gasket needs
to be replaced and they also found that
my radiator needs to be replaced. Now, since they did not have
expertise to change the head gasket, they waved
me good bye suggesting that I should go somewhere else and find some
help. That really got me concerned and I got to another
car place, lets call this Place B.

Place B opened my cars hood and said, this needs radiator change. And I
agreed. And told him about *diagnoses* from Place A.
Place B said, we do not care what Place A says, All I see is a radiator
change and I will start with that. Once I am done with
that I will test to see if we need a gasket change or not. I said
fine....

We did a radiator change, thermostat and stuff and was told that I am
all set. I said, well so we do not need gasket change.
Place B said NO. We don't. Place B added, that we did a pressure test
on the engine it passed it. So, you are all set...

I am not sure what to make of it....

I guess the bug question in my mind is What test is more conclusive
(hydrocarbon in the coolant v/s pressure test)?
If anyone can help me with it, that be great....

 

Vishal Pahuja wrote:
> I am not sure what to make of it....

just drive it and keep an eye on the gauge, and on the coolant level in
both the new radiator and the overflow bottle.
>
> I guess the bug question in my mind is What test is more conclusive
> (hydrocarbon in the coolant v/s pressure test)?
> If anyone can help me with it, that be great....

id trust a pressure test before id trust an HC test. its possible for
coolant to get contaminated.

 

Wait till the radiator coolant is cold - with the engine off, remove
the radiator cap and make certain the coolant is up to the neck. Start
the engine - if there is an exhaust leak into the coolant - the coolant
will jump out of the neck of the radiator. You can tell approximately
where the exhaust is leaking into the exhaust by removing the plugs and
looking for coolant contamination. Revving the engine up will make it
jump higher.

If the head gasket is gone - chances are good you have a warped head
and it takes someone who really knows what they are doing to "fix" a
warped head by milling or any other method to keep the head gasket from
blowing in the future.