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I have a 2000 olds silhouette that I just put a new fuel pressure regulator on. After replacing it, I started the van and immediately began smelling gas. No gas was leaking around the regulator or anywhere that I can see, but I did notice that the exhaust is blowing white. I went ahead and changed the PCV valve and it still is smelling and blowing white. Any ideas what this is? The only thing I did when changing the regulator was remove the fuel pump fuse to depressurize. I put it back once I was done. The van is running good, it just stinks pretty bad. Could use your help. Thanks


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Location: Oregon
I wouldn't worry about the smoke yet. Find out where the gas smell is coming from. If you smell gas, you have a leak somewhere. Cycle the key a few times to build up fuel pressure and look for a leak. don't start the engine. just turn the key off and then on so that the dash lights come on. that should make the 2 second prime for the fuel pump build up your fuel pressure. Look around for a leak and see if you can smell where the leak is.

once you have the leak fixed start up your engine and see if you can find a reason for the white smoke. White smoke is usually water. (steam) it could be condensation in the exhaust system from sitting over night or after a long cool down. That should get less as the exhaust system heats up. Excessive white smoke that doesn't go away after warming could be coolant getting into the combustion chamber.


   
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Ok. I'll try to find the leak. Youre right, white smoke went away. Van had been sitting for quite a number of days without starting it. Any idea if changing fpr somehow led to gas leak?


   
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Location: Oregon
it is possible that the gas smell could be from residue from when you did your regulator. has the smell gone away? but you have to check it just in case


   
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Just giving you an update on the van. I checked it out good today and there isn't any gas smell at all, plus the white smoke is no longer there. I believe you were right. It was probably residual gas from changing the regulator. Thanks again for your assistance. Very helpful.


   
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