Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 6/2017 700 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

You probably need to replace the cat 700

posted by  kilbrid3 on  Mon Feb 20 09:33 CST 2006
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Thanks All for you thoughts!

Here is the status. I went through the EGR system - pulled it all apart. I found something interesting. The tube coming from the EGR valve to the intake manifold was 80+ percent blocked. It must have to do with the hard turn in takes at the top. The rest of the system is clear. The valve functions well, and holds vacuum. The vacuum booster passes the onboard diagnositcs. I cleaned everything and put it back together.

While I was in there, I cleaned the breather box, and replaced the old cooked 0-ring that seals it to the block.

Since I have a free retest, and the EGR blockage could be a root cause for the high nox, I going to give it another try. I will keep you posted.

If this does not do it, I will go with the o2 sensor and cat.

thanks,

Bill






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Failed CA Smog Test - 92 740T [700]
posted by  kilbrid3  on Sat Feb 18 12:58 CST 2006 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.