well my car is starting to smoke. i recently replaced the head gasket. and did a comp. test and #'s were good. about a minute or two smoke will start to come out of the exhaust. vacum is good 19-20"hg the car still has alot of power just smok any ideas on what could be the cause?

thanks in advanced guys you are alot of help to me thanks again!

 

youll need to be more detailed.
what color smoke?
is it only when its cold? hot? all the time? only accelerating? decelerating?

 

is the car smoking 24/7 or just when starting up?

my car smokes a little when starting up especially in the cold.

what color is the smoke?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by knockout &raquo;</TD></TR><TR><TD CLASS="quote">youll need to be more detailed.
what color smoke?
is it only when its cold? hot? all the time? only accelerating? decelerating?</TD></TR></TABLE>

 

it's all the time. color is maybe grey

 

maybe running a little on the rich side?

 

but i havent had that problem in over 3 yrs. but i did put 89 for the first time

 

what kind of car, what is done to the car?

You cant expect answers if you dont give enough info.

If you have a high compression engine and you used 89, you could have detonated and maybe fucked up a ring. Could be running rich. Cant really tell a good answer without knowing more about the car and what is done to it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigislandc2 &raquo;</TD></TR><TR><TD CLASS="quote">but i havent had that problem in over 3 yrs. but i did put 89 for the first time</TD></TR></TABLE>

check your o2 sensor with a multimeter

 

has a superchaerger on it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigislandc2 &raquo;</TD></TR><TR><TD CLASS="quote">has a superchaerger on it.</TD></TR></TABLE>

well that would have been nice to know before.... one thing i must ask you..... it's supercharged on who knows how much psi and your only now running 89 octane for the first time???? christ!!!! must detonate like a ****....

 

I assumed your car is tuned for premium, if its tuned.

 

well i soon as i start it up it smokes. and it still pulls very hard.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cambopheonix56 &raquo;</TD></TR><TR><TD CLASS="quote">

I assumed your car is tuned for premium, if its tuned.</TD></TR></TABLE>

lol...i think you should prolly take it to a dyno/tune shop and get them to take a look at it. you do any of the work or buight it like this????

 

yeah i did all the work 3 years ago, and car has never had any problems i think its just a simple fix maybe coolant getting in the manifold not sure could even be a pvc im still checking it out

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigislandc2 &raquo;</TD></TR><TR><TD CLASS="quote">yeah i did all the work 3 years ago, and car has never had any problems i think its just a simple fix maybe coolant getting in the manifold not sure could even be a pvc im still checking it out</TD></TR></TABLE>

well monitor your coolent levels and inspect the oil and coolent for cross contamination. also...you stated it could be your pvc but really since your turbo'd i would highly suggest switching over to a catch can setup. who tuned the car? you? is it tuned? i would still highly suggest tuning for atleast 92 octane....running 89 is just not smart. how much boost you running? hope it's low....

 

take on of thoses nicatorl patchs used buy people to help them quit smokeing and put one right on you muffler change it about 3 times a day and hopefully that will work it did for my car

 

yeah it was tuned on race gas. and at 10psi. i have been constanly checking oil and coolant but they are not mixing. also all of a sudden i have an oil leak from the oil pan. not sure what from but it was kinda odd that it all just happend at once.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigislandc2 &raquo;</TD></TR><TR><TD CLASS="quote">yeah it was tuned on race gas. and at 10psi </TD></TR></TABLE>

ok what???? seriously you just finished saying that you just started running 89 octane in it now? most race fuel is well over 100 octane...then you start getting into alcohol and it goes up from there. if it's ment for 94 octane and you ran 89 in it.....detonation will have beaten the **** outta it and you would prolly notice it running like **** and making lots of noise....

 

exactly, if yours was tuned on "race gas" 89 octane would probably destroy your engine seeing as how real race gas octane is usually over 100. but if it was tuned for premium (91 or 93, because we only get 91 in cali ) then running 89 would definately be a bad idea.

 

Do a leakdown test. It'll tell you where your problem is coming from.

Have you been beating on the car since you put 89 in it? I'd reccomend running out the 89 by driving the car easily, then filling back up with premium before you really expletive something up.

Is it a roots or centrifugal style blower?

 

roots blower. i havent got on it barly was in boost the entire time. my car still runs fine its just smoking alot. vac. is 18-19 in hg. nothing sounds abnormal. just the belt squeking from the blower

 

Well, get a leakdown test done & it should find the root of your problem.

 

ok guys well today i took off the header and found #1 cyl. had water in it. i think the head might have alittle hair line crack on it. is it possible to get the head repaired by a machine shop if there is a crack

 

If it's cracked it's probably best to just get another head.

Find out if it's the head or the block (looks like it's time for a new headgasket).