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Fuel Filter & FPR Replacement Question 200 1988

posted by  Stormie on  Sun Jan 23 17:19 CST 2005
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last visit: Mon Nov 4 14:12 CST 2013
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Greetings from SoCal!

'Ole 88 failed emissions for NOX and I'm in the process of correcting the lean / hot condition. Cleaned the flame trap, hose and nipple on the intake mainfold today - they were pretty clogged. I'm going to replace the air filter and verify the condition of the hoses from the air box to the throttle body. All vacuum lines are good. I'm going to clean the TB also.

I have never replaced the FPR and it's been awhile since the fuel filter has been replaced. If I replace the fuel pressure regulator, does this relieve the fuel pressure enough to minimize the fuel spillage when I replace the fuel filter?? Since I have to disrupt the integrity of the fuel line, I would like to do it just once.

I plan on doing a tune up, change the oil and run some Techron through the fuel system. My cat and O2 sensor are not too old and from what I understand, they are not the prime suspects when NOX is high.

Stormie - '88 240DL (474,000 miles, original engine, second tranny)






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New Fuel Filter & FPR Replacement Question [200][1988]
posted by  Stormie  on Sun Jan 23 17:19 CST 2005 >


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