throtlebody smoking

[evilution]

I have just aquired a 95 talon that was running 6 months ago before this guy parked it,now that ive got it I try to crank it and it sounds like it wants to crank but it will stop and a light smoke will slowly poor out the throtlebody. I have checked the timing and every thing is dead on a friend of mine checked the compression and said it was fine, any thoughts would be appreciated.

 

[diablos991]

Next things you have to check for are spark and fuel.
Do you smell gasoline when trying to crank it? That would be a sign of fuel.
Check the spark plugs and plug wires. Also check the battery to make sure that its has a good charge.

 

[evilution]

yes got fuel, got spark, battery is great, wires are brand new, so is ignition coil.

 

[4UH8ERS]

I have just aquired a 95 talon that was running 6 months ago before this guy parked it,now that ive got it I try to crank it and it sounds like it wants to crank but it will stop and a light smoke will slowly poor out the throtlebody. I have checked the timing and every thing is dead on a friend of mine checked the compression and said it was fine, any thoughts would be appreciated.

so you have the air intake off while trying to start it? because you said you seen smoke coming out the throttle body.

 

[evilution]

yes I have the air intake off

 

[FORMONTOYA]

yes I have the air intake off

The real key question:

Is it just the air filter that's off, or the whole intake track to the throttle body. If it's the latter, then there's your problem. Our cars, whether turbo or N/T, don't run very well if at all without the MAS in line and hooked up. Especially after it has sat for an extended period of time.

 

[4UH8ERS]

The real key question:

Is it just the air filter that's off, or the whole intake track to the throttle body. If it's the latter, then there's your problem. Our cars, whether turbo or N/T, don't run very well if at all without the MAS in line and hooked up. Especially after it has sat for an extended period of time.

420a n/t does not have a MAS.

 

[FORMONTOYA]

OK, I don't own a N/T. However, there has to be some kind of metering device for air "ingestion", and it needs to be hooked up.

 

[4UH8ERS]

OK, I don't own a N/T. However, there has to be some kind of metering device for air "ingestion", and it needs to be hooked up.

all we got is an ISC, and TPS on the throttle body and our MAP sensor on the intake manifold.

 

[FORMONTOYA]

all we got is an ISC, and TPS on the throttle body and our MAP sensor on the intake manifold.

Well, damn. Then forget everything I mentioned.

And thanks for the knowledge.

 

[Strife]

Was the intake off the thottlebody for the six months it sat? Maybe water got in it?
Another thing to check would be that your starter is working correctly. If you rip it out and take it to a local Autozone they will test it for free. -Good Luck-
Brian-

 

[Strife]

If it is the starter, the smoke could just be water vaper burning off. That is assuming it wasn't alot of smoke.
Brian-

 

[evilution]

The air intake was atached to the throttlebody the entire time it sat up I took it off when i started looking for the problem. Also does anybody think that maybe the map sensor could be the problem?

 

[Strife]

If the MAP sensor was the problem I think it would start up and run, just very poorly.

 

[evilution]

Well ive got the thing to crank twice now just dosent run worth a flip, and it bogs out and out puffs the smoke. When it does crank it only last for like 1-2 mins.

 

[Strife]

When you had it running for those one or two minutes, did you give it any gas?

 

[4UH8ERS]

is it not throwing a CEL?

 

[evilution]

gave it gas and it sounded like crap, all spudering and what not. Also not getting a cel.
I did the key back and forth five times deal and cgot a 12, and a 55 which from what i can remember is nothing but battery has ben disconected, and no more code type deal. Of course I could be wrong

 

[DarthBulk]

Are you sure there is good gas in your tank? I mean, no water or condensation got in there with it being parked so long?

 

[dr1665]

"Smoke" from the throttle body?

Is it more like fog? If that's the case, it could be that you have an injector stuck open. Is this where it's "puffing" smoke? If so, I would consider pulling the injectors and taking them in to be cleaned/tested. Might run you about $60 to do so, but worth a shot. You don't seem to have enough run time to get a screwdriver and listen to them operating, si it might be the issue.

Do a compression test just to be sure, though. You need air/fuel, compression and spark to run the engine. You have air, you have spark, so being sure you have compression would help to further isolate this problem.

 

[doggo]

Even a single dead injector wouldnt produce smoke from the TB. And a dead injector will just cause the engine to run rough...not kill idle. At least that's been my experience. I once drove an N/T around for a month with a dead injector, and other than being underpowered and running rough at idle, it was ok.

Can an injector get stuck open? When they fail its usually closed isnt it?

If that was gas vapor/spray coming out his TB, wouldnt his motor have caught on fire by now?

 

[dr1665]

Can an injector get stuck open? When they fail its usually closed isnt it?

They can go either way. When an injector is stuck open, you will typically experience a really shitty idle that gets smoother as your increase engine speed, as the AFR becomes closer and closer to ideal as you feed the engine more air at higher RPMs. Other symptoms of injectors stuck open are a fine fog wafting out the tail pipe a minute or so after the engine is shut down and even markedly cooler runners on a header (tested with external thermocouple).

The idle is shitty and the engine may not want to start due it's being effectively flooded.

 

[4UH8ERS]

At least that's been my experience. I once drove an N/T around for a month with a dead injector, and other than being underpowered and running rough at idle, it was ok.

how did you drive a car for a month with a dead injector? a completely dead injector would result in a lean cylinder and eventually burn your piston up.

 

[doggo]

Yeah its lean, but its 100% lean meaning no combustion. it does not heat up, because there is NO FUEL to ignite.

 

[DarthBulk]

I just thought of something else. I know someone who let a Firebird sit for a year, and when he tried to start it he had a lot of problems with trying to get it to fire and run. We found that the exhaust was plugged, as some industrious animal built a nest in there.