You are here: Forums Vans & Minivans GMC Safari & Chevy Astro GMC Safari/Chevy Astro

GMC Safari/Chevy Astro

1889 messages,  Last post on Nov 13, 2009 at 9:04 AM

You are in the GMC Safari & Chevy Astro Forum. Your Host is Karens

What is this discussion about? GMC Safari, Chevrolet Astro, Van

Messages Page 54 of 190 1 ... 51 52 53 54 55 56 57 ... 190 Prev Next Last

Go To Msg # Search This Discussion

#526 of 1889 o2 sensor by julians Feb 10, 2003 (8:26 am)
My 91 Astro was running very rough and stalling about a year and a half ago. It did not pass emissions and needed an o2 sensor. Still never passed emissions, but since then it has run very well. It is starting to run a little rough again. I have also heard that if the Catalitic (sp?) converter is in need of replacemnt it will give off the bad smell, and cause the o2 sensor to wear out quickly.
#527 of 1889 by mrnimmo Feb 12, 2003 (5:47 am)
>>I have also heard that if the Catalitic (sp?) converter is in need of replacemnt it will give off the bad smell, and cause the o2 sensor to wear out quickly.   A bad cat will smell like rotten eggs. A bad cat will also fry your 02 sensor or sensors in short order, particularly a "downstream" 02 sensor like many cars have today. They should have checked your cat when they changed your 02 sensor or sensors.   I don't, however, believe that the cat is likely to cause your emissions failure. The pollutants removed by the cat process aren't typically measured at emissions time.
#528 of 1889 Emissions, emissions, emissions.... by riccd2001 Feb 13, 2003 (8:07 am)
"The pollutants removed by the cat process aren't typically measured at emissions time."   I bought a well-used '94 Safari SLT AWD in May 2002 and had to go through the "Drive Clean" program for vehicle certification in the Toronto area.   For my Safari the inspection included an Emissions Control System test covering EGR, PCV, Catalytic Converter, Fuel Evaporative System and Gas Cap Pressure with a visible smoke inspection - all with a simple "pass" reported. Then there was a two-speed idle/2500 rpm tailpipe emissions inspection to confirm readings under 200 ppm for HC and under 1.00 per cent CO; 135 & 0.13% / 27 & 0.08% were my results.   Just wondering how these tests, limits and results compare to other folks' experience.
#529 of 1889 by mrnimmo Feb 13, 2003 (5:18 pm)
>For my Safari the inspection included an Emissions Control System test covering EGR, PCV, Catalytic Converter, Fuel Evaporative System and Gas Cap Pressure with a visible smoke inspection -   Yeah, there are visual and function tests of these components, but the cat itself does not affect the percentages seen by the sniffer. The 02 sensor certainly will. While the original post didn't specify why he didn't pass emissions, I assumed that if they identifiied a specific component, ie cat missing, then he wouldn't need to figure out what to replace. I admittedly ASSumed he meant his percentages were off, but you know what they say about assuming...
#530 of 1889 snow and ice by sammycastagna Feb 16, 2003 (3:53 pm)
It is sleeting and snowing again and I just can not believe how well the AWD with limited slip does on slick surfaces. If I take of in a reasonable manner even on a hill the van does not slip at all. But I bet it will be expensive if it breaks.   Sammy Castagna
#532 of 1889 Chevy Astro AWD or 2WD? by lsnyder2 Feb 17, 2003 (9:42 am)
Hello out there... I need a good used Cargo van for a new business I'm starting. I'm looking at a 1998 Chevy Astro cargo with AWD and 78000 miles. It was previously a Verizon Fleet Car. Some people have advised me to stay away from the AWD. Any experience/opinions would be greatly appreciated!   Thanks, Larry
#533 of 1889 Oil lines leaking by bsmoodha Feb 21, 2003 (3:13 pm)
Has anybody else had the external oil lines to the oil filter leaking where if goes from redgid to flex forward of the left engine mount ??
#534 of 1889 re;rear heat by ganze1 Feb 24, 2003 (1:19 pm)
Biggr, How you put a straight through vacuum on? Did you just remove it from the valve near the A/C or did you do it under the van? I saw about 3 to 4 vacuum hoses near the A/C box so I'm not sure which one you used. Also, I would assume that as long as I do not have the Rear Heat switch on that the heat should not blow out. Is that correct?   Thanks, Phil...
#535 of 1889 Chevy Astro AWD or 2WD? by rockenbach Feb 26, 2003 (2:57 pm)
I have heard the same from my mechanic but I would also like to know more . . . thanks

Messages Page 54 of 190 1 ... 51 52 53 54 55 56 57 ... 190 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Vans & Minivans GMC Safari & Chevy Astro GMC Safari/Chevy Astro