[shelbystangman]

black smoke when car starts up is this bad should i be worried

[CobraBoy]

how many miles are on your car and do you have anything done to it? how long has this been going on? be a little bit more specific.

generally black smoke is not a horrible thing. however, that does not mean you should not worry about it... the tricky part is to figure out whether it's oil or fuel. fuel burns black and has a sharp smell to it and oil smells... different... almost kinda sweet i suppose is the best word to describe it.

like i said though... give more info on the car

[shelbystangman]

i have close 2 87000 miles and its stock it just started this week

[snake 42]

Normally black smoke indicates the mixture is way too rich. Does the smoke stop when the engine warms up or does it continue all the time? If it clears up then the cold start enrichment is set incorrectly and the dealer can adjust that. If the smoke continues all the time then the fuel table is set incorrectly or the Mass air may be malfunctioning all of which can be adjusted by a tuner or the dealer in your area

[CobraBoy]

are you getting a check engine light? how does it run?

[shelbystangman]

the check engine light has always been on for the maf and the temp it runs fine when it gets warmed up

[markwondi]

Originally Posted by shelbystangman

the check engine light has always been on for the maf and the temp it runs fine when it gets warmed up

have you thought about maybe checking WHY you have a CEL for the MAF. If the MAF is bad, or has inproper reference signals, the car will run extremely rich.

[Racman]

Could it be worn valve seals or guides allowing some oil to escape into the combustion chamber and upon initial startup it blows it out? I have seen this happen in old chevy's but not sure about the fords.

[shelbystangman]

i took into autozone a couple of months ago and had it checked but i cant find the reciept for it so ill have 2 try 2 find em

[shelbystangman]

Originally Posted by Racman

Could it be worn valve seals or guides allowing some oil to escape into the combustion chamber and upon initial startup it blows it out? I have seen this happen in old chevy's but not sure about the fords.

im not sure would it do any good 2 change the oil

[markwondi]

Originally Posted by shelbystangman

i took into autozone a couple of months ago and had it checked but i cant find the reciept for it so ill have 2 try 2 find em

Um, receipt for what? I hope you're not allowing some fvcktard at Autozone to diagnose your car?

Get the MAF figured out. It needs to be properly diagnosed as to WHY it's setting a CEL. It is more than likely the cause of your problem, and running around dumping excess fuel in the cylinders is NOT a good thing. Your rings will be shot from fuel wash.

[markwondi]

Originally Posted by shelbystangman

im not sure would it do any good 2 change the oil

No, it wouldn't. If a valve seal was bad, an oil change would do nothing. You would need to replace the seals, or the guides if they are excessively worn.

If it was the above problem, it generally creates a blue cloud of smoke on startup.

[shelbystangman]

[quote=markwondi;770951]Um, receipt for what? I hope you're not allowing some fvcktard at Autozone to diagnose your car?


no all i had them do was check the codes to see why it was on

[markwondi]

[quote=shelbystangman;770966]

Originally Posted by markwondi

Um, receipt for what? I hope you're not allowing some fvcktard at Autozone to diagnose your car?


no all i had them do was check the codes to see why it was on

Well, now it's time to get to work and figure out why it's on

[shelbystangman]

[quote=markwondi;770968]

Originally Posted by shelbystangman

Well, now it's time to get to work and figure out why it's on

man im really gettin tired of that pos the list just keeps getting longer and longer and i was so close to being done