smoker
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smoker
My 2000 F150 5.4 eng. puts out a big cloud of smoke when i start it.
It does not seem to burn oil, and does not smoke when i drive.
and it has just started to do this. like the last two days.
It has 89000 miles.
On older cars smoking use to be valve seals.
Whats up Doc. ?
It does not seem to burn oil, and does not smoke when i drive.
and it has just started to do this. like the last two days.
It has 89000 miles.
On older cars smoking use to be valve seals.
Whats up Doc. ?
Senior User
Joined: Mar 2003
Posts: 397
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From: nova scotia, canada
smoker
if the cloud is more white than any other color it colud be normal in cold weather for an exhaust cloud to appear when the truck is cold. once the cat heats up the smoke should dissapear. do you notice any other cold starting cars in your area doing this?
also check your coolant level. it may be time for a tune up. even poor quality gas can create a smoking when cold situation. after the truck warms up and has driven for awile stop, put the truck in park let it idle for at least 1 min then stomp on'er. if you have any internal oil or coolant leaks you will see the smoke. no smoke, hopefully, it may just be the weather. if you have the ability check the egr system.
also check your coolant level. it may be time for a tune up. even poor quality gas can create a smoking when cold situation. after the truck warms up and has driven for awile stop, put the truck in park let it idle for at least 1 min then stomp on'er. if you have any internal oil or coolant leaks you will see the smoke. no smoke, hopefully, it may just be the weather. if you have the ability check the egr system.
Senior User
Joined: Mar 2003
Posts: 397
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From: nova scotia, canada
blue
if the smoke is blue than you are burnin oil. the gas may be bad but the performance of the truck would be noticeable. i've seen where these engines start to smoke and the owner drives the heck out of her. i know it sounds wrong but i've seen and heard on this site that this can fix the problem. after trying the idle susg. i would drive her like i renter her for a tank. try not to get any tickets. maybe this will help. if it doesn't pull the plugs, if they are all pertty much the same then try a good tune up. if you have one plug that is more fouled than another you may have to consult a good mechanic to see what the problem may be. i'm assuming that there are no trouble codes.
Senior User
Joined: Sep 2004
Posts: 308
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From: Michigan
I had a 2002 f150 4.6 that did the same thing. Smoked only on startup, burned very little oil. It did this for about 4 months. One day the check engine light came on, and I had it checked for codes. The code represented "insufficient EGR flow" (sorry, I don't remember the #), it turned out to be a bad DPFE sensor. The new sensor solved the smoking problem, and mpg's increased also.
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Joined: Jan 2005
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Originally Posted by tenner
My 2000 F150 5.4 eng. puts out a big cloud of smoke when i start it.
It does not seem to burn oil, and does not smoke when i drive.
and it has just started to do this. like the last two days.
It has 89000 miles.
On older cars smoking use to be valve seals.
Whats up Doc. ?
It does not seem to burn oil, and does not smoke when i drive.
and it has just started to do this. like the last two days.
It has 89000 miles.
On older cars smoking use to be valve seals.
Whats up Doc. ?
Took the PVC valve to the dealer and asked them to see if it was working!
They didn't know ---- and did not have any in stock Said i needed to have a compresion test done.
stoped at Advance Auto and got one $2.12
no smoke since.
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Senior User
Joined: Sep 2004
Posts: 308
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From: Michigan
Originally Posted by tenner
Update...
Took the PVC valve to the dealer and asked them to see if it was working!
They didn't know ---- and did not have any in stock Said i needed to have a compresion test done.
stoped at Advance Auto and got one $2.12
no smoke since.
Took the PVC valve to the dealer and asked them to see if it was working!
They didn't know ---- and did not have any in stock Said i needed to have a compresion test done.
stoped at Advance Auto and got one $2.12
no smoke since.
Nice!!
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Junior User
Joined: Sep 1999
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I replaced my PCV with mixed results.
I had the classic blue smoke cloud on startup so i replaced my PCV. I checked the old one and it was bad. The smoke is gone but i am still burning oil to the tune of 1 quart to every 2 tanks of gas. My milage has gone from 14.5 when it was new to 12 mpg now at 74,000 miles. I think my valve seals are bad. Any other ideas?
Senior User
Joined: Mar 2004
Posts: 224
Likes: 1
From: Central Ohio
reuel, leaking valve seals probably wouldn't decrease milage. At least not without fouling the plugs. Replace the plugs and see if it helps for a while. If it does, it might be seals. You may have a more serious problem.