Question about 1999 Chevrolet Astro

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My 99 astro van catalytic converter turns red after being driven for 3 hours

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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mcalkins3
  • 123 Answers

SOURCE: catalytic converter still glowing red

When running does the engine shake back and forth (indicating a skip in the engine) also does it rev up freely. If you were to rev it up to 3500RPMS would it be smooth without the engine shaking back and forth? Also the o2 sensor on the front of the exhaust manifold is pretty easy to get at, if you were able to pull that( 7/8") wrench I beleive) you could tell if it were running rich (sooty black color). In the end you could take it to a muffler shop and for very little money have them inspect your cat, without any cutting or welding. a $20-$30 cost at most. I know the fixya wants us to be self suficiant but even i don't mess with small exhaust work because of the benieft of not dealing with it, especially for such a small price. But if its something you wanted to do, I could explain so. A shop can visually inspect the cat, and see if it is clogged with oil, or excessive fuel. At any rate in the end if they do find that you do need a cat, don't buy a GM one, there are plenty of other sources for an aftermarket cat. IF you decided to go that route i know of a few sources that one could be had for pretty cheap ($50-70) for new. Let me know if any of this helps

Posted on Sep 15, 2008

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  • 44 Answers

SOURCE: 1996 astro van stopped running

Sounds like dirty gas and the fuel filter is clogged...try changing the fuel filter...some are under the car, but most are mounted against the firewall in the engine compartment.

Posted on Apr 19, 2009

  • 753 Answers

SOURCE: where is the coil located on a 99 chevy astro van?

You have to remove the interior dog box and the distributor and coil assemblies are in the back of the engine behind the upper plenum.

Posted on Sep 28, 2009

  • 1608 Answers

SOURCE: 2000 astro van won't start

What you have to do is check and see if you have fuel pressure.You have to remove the engine cover to check it.If you don`t have a pressure tester then remove the air cleaner hose to the engine and spray it with carb.cleaner or brake cleaner.If it starts for a few seconds then it is more than likely a fuel pump.If it does not start then you have to check for spark at the spark plugs.Make sure you check more than one plug.If no spark then you have to check the distributor cap and rotor.Make sure the rotor is good and cap also.Things that can cause no spark are the ignition module,coil,and cap and rotor.Hope this helps.Good luck.

Posted on Jan 29, 2010

  • 56 Answers

SOURCE: Can I remove a damaged ignition key switch from a 99 astro van?

yes, that is what a large srew driver is for, hehe.
However you will need to pull the stering wheel
and remove the internal blinker assembly and remove a bolt holding it in place, if you need to move the tumbler use a srew driver and force it around. This
should be done by a good mechanic, even we have a fun time...If it is design like I think

Posted on Feb 10, 2010

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1 Answer

What is an 02 sensor upstream 98 astro van


02 sensor is your oxygen sensor, 98 chevy astro carries 3 oxygen sensor. i belived your bad sensor is on the passenger side by the exhaust manifold but if not try the drivers side all the oxygen sensor for this van are the same. you need to go under the van to replace it, if is to hard to get it out turn your van for five minutes then turn it off and try again, be carefull not to burn your self. the one close to the catalytic converter is the downstream oxygen sensor ok, good luck!!!!!!

Jun 28, 2014 | 1998 Chevrolet Astro Van

1 Answer

Trouble code p0420


The P0420 code means that the catalytic converter efficiency is below threshold. Since there are two oxygen sensors, above and after the catalytic converter, they together generate signals which are used to monitor the efficiency. However, if the catalytic converter is bad, the sensor after the converter will generate steady results, without any fluctuations.
You can replace the catalytic converter to overcome this problem. However, there are chances of the P0420 code to come up if there is any leak in the exhaust or the downstream o2 sensor (after the converter) is bad. Ideally, before spending on cat, you should try replacing the downstream sensor, which you can buy at low price from online stores like oxygensensorworld.com and also inspect for any small leaks in the exhaust system. Since the converter can cost you more, think of replacing it only if needed.

May 23, 2013 | Cars & Trucks

2 Answers

I have a 1996 astro van with a trouble code of PO420


catalytic converter is either plugging or is burning out

Feb 16, 2013 | 1996 Chevrolet Astro

1 Answer

Ineed to know where is located the oxigen sensor in a 95 chevy astro van


the front sensor or "sensor one " is located on the drivers side in the exhaust Y-pipe, sensor two is located near the catalytic converter

Jan 14, 2011 | 1995 Chevrolet Astro

3 Answers

Diagram to where blank 1 sensor 3 is on a 1997 chevy astro van is located


Bank 1 Sensor 3 is the post converter sensor.

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Hope this helps (remember to rate this answer).

Jan 11, 2011 | 1997 Chevrolet Astro

1 Answer

My 2005 astro van only goes as fast as 20 mph what might be the problem


it sounds like a clogged catalytic converter. With the engine idling, put your hand at the tailpipe and check the pressure of the exhaust. If it is real low press. it is a clogged converter

Mar 03, 2010 | 2002 Chevrolet Astro

1 Answer

1996 astro van stopped running


Sounds like dirty gas and the fuel filter is clogged...try changing the fuel filter...some are under the car, but most are mounted against the firewall in the engine compartment.

Apr 19, 2009 | 2005 Chevrolet Astro

1 Answer

99 astro van shuts off in reverse


try checking the park,neutral position switch

Feb 22, 2009 | 1999 Chevrolet Astro

1 Answer

Nissan Quest 2000 stops in hot weather.


hi
I think it was a catalytic converter problem
so change it may be fix a problem
with my best wishes

Jul 02, 2008 | 2000 Nissan Quest

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