Just took my car into the test only shop today. My moms 94 LS failed. The radiator had a crack in and I made serveral attempts to fix it using aluminum shavings. (that silver dry stuff you buy in a tube) Is hat something that will force my cooling system malfunction and assist it in emitting the high nox levels?

I think I will be changing the cat (more than 11 years old), the o2 sensor, fuel filter, spark plug wires (i thought they were good appearance wise, they are oldt though). Perhaps seafoaming? and ???? any other tips to help me fix my moms car would be great.

Thanks again all.

 

bumper...hoping to get some replies

thanks guys

 

change all of that stuff and then let us know. that just might do it. NoX is created primarily by high combustion temps, so it might just be running lean.

 

i will try it and report it to you. my mom give me 200 to spend, so ill run to kragen tomorow and see what i can get.

 

dam everything added up to 320.

wish me luck! im working on the stuff tonight.

 

I doubt it is the radiator at all. The thing most likely is your cat, O2 sensor, or any kind of air leak. how high is your idle rpm?

 

its wierd...when i start it up..its at 1500/1600 then drops to like 7500/5000

normal i think...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ucdant &raquo;</TD></TR><TR><TD CLASS="quote">drops to like 7500/5000 normal i think...</TD></TR></TABLE>


since when is that normal