Question about 1985 Chevrolet C1500

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Blue smoke every other day with cranking. Installed new valve seals. Would the exhause re-circulation valve that mounts to the emissions pump malfunction cause intermittent smoking?

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Check Transmission Modular Valve, A blown diaphram will cause ATF to be sucked out of transmission into intake Manifold.

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I got a peugeot 207 1.4vti 2007 it starting to blow out blue smoke when iam at lights or in traffic it just had a new timing chain new exhaust and now this

indicates failed valve stem seals
when idling the vacuum in the system sucks oil past the seals down the valve stems and into the cylinder inlet ports behind the valve heads
on acceleration that small amount of oil is allowed into the cylinders indication blue smoke on take off
Blue smoke on hard acceleration is an indication of worn bearings as the bearings are pressed ******* the crank pin, enlarging the clearance on the other side which allows excess oil up onto the cylinder walls which the oil rings cannot control

May 02, 2018 | Peugeot Cars & Trucks

2 Answers

What does blue smoke mean

Burning oil. Could be a couple of things. Possible your valve guide seals are warn out. If its blue smoke mostly when you first start the car, its likely valve guide seals. If its continuously smoking blue, its more than likely a broken or warn out piston ring. If its just every so slightly blue in tent, it might be worth a try to replace your PCV valve first. When the PCV valve gets completely gummed up, the pressure inside your valve covers has no way to vent other than forcing its way through the valves into the cylinders often times taking oil with it. Since PCV's usually only run out about $10 its worth a shot. Other wise, you've got a decent overhaul ahead of you for either piston rings or valve seals...on a 12 year old car most folks would either choose to scrap it, or live with the blue smoke while monitoring oil levels and watching for fouled plugs. Hope that helps and good luck!!

Jun 17, 2014 | 2002 Nissan Altima

1 Answer

94z71 smokes when first crank or idolin

Sounds like valve stem seals or valve guides. The smoke would be blue, also going down hill against compression... Upon acceleration, you would see a puff of blue smoke.

Mar 15, 2011 | Chevrolet 1500 Cars & Trucks

2 Answers

Check Engine lite comes on Code PO440

16824/P0440/001088 - EVAP Emission Control Sys: Malfunction Possible Symptoms
  • Malfunction Indicator Light (MIL) active
Possible Causes
  • Evaporative Emission (EVAP) System leaking
  • Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) faulty
  • Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115) faulty
Possible Solutions
  • Check Evaporative Emission (EVAP) System Sealing
  • Check Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
  • Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115)

Jun 17, 2010 | 2000 Volkswagen Beetle

2 Answers


Oil consumption.

Bad rings,valve guides

May 15, 2010 | 2004 Nissan Altima

2 Answers

I have a 2003 ford expedition it smokes sometimes when i crank it what could be the cause of this the smoke is blue

blue smoke is oil possible worn or damaged component in head-usual problem is valve seal or worn valve guides -pull and inspect the spark plugs look for which one[s] is fouled or oil soaked that will narrow down where ur problem is

Mar 09, 2010 | 2003 Ford Expedition

1 Answer

Won't idle properly, smokes, does not shift right

Black smoke is usually too much fuel to the engine. Check main computer that controls fuel injection and timing.
Blue smoke is usually oil getting sucked past worn piston rings or valve seals.
White smoke = water getting into cylinders, bad head or intake manafold gasket, or cracked cylinder head or engine block.

Aug 04, 2009 | 2002 Jeep Liberty

1 Answer

Pwr steering pump failure GM truck

check to see if truck has a power steering pump cooler try to bypass cooler sounds like it has a blockage in the cooler not allowing fuild to circulate should fix problem

Nov 21, 2008 | 1993 Chevrolet K1500

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