The saga continues...lots of white smoke.

[danalyse]

Bought a cabrio with known rough running issues from out of state. When delivered it limped home from a nearby drop off. Could not start at all once home but discovered that the crank sensor wire was resting on the alternator and perhaps fraying a bit. Once removed from that position car started up. PO was able to get the OBD to readout but I am not. His read out was injectors. He cleaned them and he said it ran better for a while then it started running rough again. I replaced the injectors with some rebuilt 19lb models which made the car run significantly better but now I am getting a large amount of white smoke? Does the CPU need to be reaclimated to the new injectors. What about the fuel pressure regulator. I am lost for the moment and any advice will be appreciated.

[Devil Inc]

Umm...white smoke is generally related to a head gasket issue. Check the oil for traces of coolant.

[danalyse]

The saga continued

I discovered that the oil was overfilled by about a quart so I drained off a quart and the oil looked uncontaminated.

[Devil Inc]

Check the coolant overflow tank to see if there is any funkiness floating around in there. I wouldn't rule out a head issue, could be just a blown coolant passage, so it's only burning coolant.

[danalyse]

More of the continuing saga

The white smoke comes and goes. Do not see any yuk in the overflow but it is rather low so cant see much. Does not seem to be an inordinate pressure build up in the overflow tank. The car is chugging and idling a bit rough. Will a compression test reveal coolant leakage into the cylinders. I wish I could get the check engine light to go off as I cannot get the OBD system to work. Incidentally, what are those green rectangular lights on the dash just above the steering column light.

[Devil Inc]

Those are your service indicator lights. They'll go to an amber color when it feels you need an oil change and various other things. The coming and going of the smoke could indicate a cracked head, where it would while it was cold and once it warmed up it would seal and no longer produce the white smoke. Mine did that when I bought it.

[danalyse]

White smoke again

Ugh. I did replace the injectors. What is the FRP. do you think a compression will reveal the problem.

[Devil Inc]

Sorry wrong thread, I fixed.

[thereisnoyun]

Ugh. I did replace the injectors. What is the FRP. do you think a compression will reveal the problem.

fuel pressure regulator (FRP) its connected on the fuel rain in the end with teh two hoses going into it.

If its internal to the combustion, yes, if yo uare running really rought and puffing white smoke yes. But even if it does determine the compression is low, it coudl still be a variety of issue. It could be a crackhead, crack block, bent valve. The list goes on.

for a rough/ bad running engine. I would just pull it and do a top end clean up and replace the head gasket and all the intake gasket.

[g323]

Dude, use K&W Block sealant quick. Also remove the valve cover and make sure nothings snapped or broken up there.

[RangerGress]

A leakdown test will tell you if there is a cylinder sealing problem and which cylinder it is. You should also be able to identify if it's coolant related because you can usually hear where the air is going. There is a leakdown DIY on my website at the bottom of the track tales page.

Based on the leakdown test, you can determine whether it makes sense to remove the head. If you do remove the head, you might as well have a valve job done on it before you put the head back on.