1988ragtop

I have an 88gt and it is running rough and I am getting some black smoke out of the exhaust. Any one have some recommendations? Some people tell me it's my timing and some say my egr valve, do either of these sound like the problem?

88stangaruu

could be alot of things. You could be running just extremely rich and its fouling your plugs making the car run rough. Check ur plugs see if the'yre fouled out.

Tims 88GT

if its black its rich, maybe your o2's are bad

88stangaruu

^^Thats another thing, or they're just caked full of carbon. Burn them with a propane torch to clean them. I did that with mine and my car runs much better now.

Tims 88GT

^^agree stright up

mcfomco

agreed+2

Bliz

I am having the same problem, Mine has even died on me a few times while driving. I just replaced the spark plugs and they smelled strongly like gas. I am going to try the O2's next. let me know if anyone has any other ideas on this. If I cant figure it out in the next week or so I am going to take it to a local ford shop and I will post the results.

Good Luck on the fix!!!

ikeybmg

check the timing. and then what they said above.

Bliz

Well it goes in on wednesday to find out what the problem is. the only thing I can tell is its dumping gas in the cylinders. I will keep you updated

ZachW04Stang

Could be a vacuum leak. The map sensor could be dumping fuel to compensate for the less vacuum. Is it running rich at start up? If it is it isn't the 02's because they don't kick in till they heat up to a 600* and the ect detects 160*.