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My 2004 pontiac sunfire after running thru a flood killed engine and replaced everything possible but the catalytic converter could that keep it from starting

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  • 18 Answers

If under water to point water entered the air breathed, you may need to remove all the spark plugs, and crank the car with them out. You need to ensure all water has been removed. You need to also change the oil. With new spark plugs, it should start if it was running before.

Posted on May 03, 2017

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6ya6ya
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Posted on Jan 02, 2017

chiquititas
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SOURCE: 1999 pontiac sunfire will not start

Maybe the starter is not notify to the engine.

Posted on Jun 17, 2008

BCally1
  • 133 Answers

SOURCE: Replace muffler, not the catalytic converter which started to rattle. Stop running, will crank but will not start. can it be the catalytic converter.

if the converter is rattlin then it needs to be replaced because the element inside is broken. if the jeep still does not run try removing the catalytic converter to see if the restriction is too much. should start if the converter is restricted. if it doesnt maybe its whatever caused the converter to go bad in the first place

Posted on May 28, 2009

  • 170 Answers

SOURCE: Pontiac Sunfire Exhaust pipe hanging low

Put the car up on ramps or jack stands and look for a broken hanger. If the rubber part is broken buy a new one, if the metal rod has rusted away then go to a auto parts store and buy a universal hanger. If the exhaust is broken buy a length of repair pipe. Either ridgid for a straight section or flexible for bends. Use a sawzall or hacksaw to cut off broken ends, fit repair pipe and clamps over the old pipes, then tighten the clamps. The people at the store should be able to answer any questions for you.

Posted on Jul 27, 2009

  • 87 Answers

SOURCE: Horn relay on a 2004 pontiac sunfire

It's usually in the engine compartment in the underhood fuseblock.

Posted on Jul 31, 2009

  • 1 Answer

SOURCE: problem with theft system on pontiac sunfire 1997,

se encendio la luz de theft sistrem y no se aue hacer

Posted on Oct 07, 2010

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My 2004 chevy Colorado starts but then dies or you keep it revved up a little it stays running. The code says it has a faulty temp sending unit could that make it do what its doing


Yes. Very much so. A faulty temp sending unit will cause the PCM to give incorrect fuel information to the fuel injectors. They are designed to fail with a low temp reading. This will cause too much fuel to go to the injectors and what you are experiencing is the engine flooding out. By revving the engine you are burning off the excess fuel and giving that fuel more air. You need to replace the sensor because running the engine long term that way will damage the O2 sensor(s) and possibly the catalytic converters, not to mention you will get less than half the normal fuel mileage.

Oct 12, 2015 | Cars & Trucks

1 Answer

P0136


Code 136 is for a problem with the O2 sensor mounted in the exhaust pipe after the catalytic converter.
The sensor would need to be checked with a scanner.

Jul 13, 2013 | 2004 Pontiac Sunfire

1 Answer

Catalytic converter-Can it be cleaned?


scrap yard Dave, can't clean a converter mate!

Jul 13, 2013 | 2002 Pontiac Sunfire

1 Answer

Having Engine Problems with my 04 Sunfire, can anyone help?


The generic code is for a problem with the heater circuit in the O2 sensor after the catalytic converter.
The sensor is not heating up fast enough to work correctly.
It could be a faulty sensor or a problem with the power to the heater. The sensor does have a slight effect on the fuel mixture, but I doubt it would cause the engine to run rough.

Sep 01, 2012 | 2004 Pontiac Sunfire

1 Answer

In a 1996 pontiac sunfire there are 2 oxygen sensors .. one on top.. one on bottom of engine. i need to know where exactly they are located and how easily they are accessed


Oxygen sensors are always located in the exhaust system. The top one you refer to is likely on the exhaust manifold, or just after on the exhaust pipe, but before the catalytic converter. If you have a v-6 there may be one on each bank of the block in the exhaust manifolds. Then, there is also an O2 sensor located in exhaust, after the catalytic converter, to monitor efficiency of the converter.
Both should be fairly easy to access. Good luck.

Jan 30, 2012 | 1996 Pontiac Sunfire

1 Answer

I have put 5 catalytic converters on my car and the code still keeps ******* up that there's a problem with my catalytic converter. Any suggestion?


Did you replace the sensor?It is possible that something else is going on in your engine like running dirty and it shows up in the CAT and that's why you get the reading.

Sep 07, 2011 | 2001 Pontiac Firebird

1 Answer

I have a four door 1998 pontiac sunfire. It has been make a sort of weird vibration comin from the muffler area lately and now all of a sudden after drivin it around like that for a cpl weeks the engine...


I would guess that you have had part of the internals of the muffler break up. The most painful possibility is that the catalytic converter has failed and it's restricting the output from the exhaust. This will cause all kinds of issues with back pressure in the system which will do no good and will certainly cause the check engine light to come on as lambda sensors are affected by the change in flow from the manifold caused by the restriction.

Did you by ay chance smell (or do you now smell) sulphur dioxide (rotting eggs) when the engine stalled? This is a classig sign of a failed catalytic converter. It could of course be something as simple as a breakdown inside one of the muffler units and silencer material blocking the pipe. If this was tha case, then a classic sign is sound absorbtion material (usually fibreglass wool) being blown out of the tailpipe.

Jul 18, 2011 | 1998 Pontiac Sunfire

1 Answer

04 murano. will not accelerate. p0420 present. foot to the floor only goes 2-3 mph.


CODE PO420 CATALYST BELOW NORMAL BANK 1 .POSSIBLE CAUSE CATALTIC CONVERTER , WIRING , HO2S 2 HAVE VECHICLE PUT ON A SCANNER TO CHECK FUEL TRIM.A RICH FUEL MIXTURE WILL CAUSE THIS PROBLEM.MAKE SURE SPARK PLUGS AND WIRES GOOD AND FUEL INJCTORS ARE CLEANED NOT CAUSING ENGINE FLOODING MAKE SURE O2 SENSORS OKAY.IF YOU HAVE TO REPLACE THE CATALYTIC CONVERTER. AND FUEL SYSTEM STILL RICH IT WILL BURN OUT NEW CATALYTIC CONVERTER.YOU WILL BE REPLACING IT AGAIN.

Sep 05, 2010 | 2004 Nissan Murano

1 Answer

2001 Pontiac Sunfire automatic engine may start


You might want to have it checked to see if you have fuel pressure or see if there is spark going thru to your spark plug.If everything is ok it might be your timing belt needs replacing

Jul 23, 2010 | 2001 Pontiac Sunfire

1 Answer

2004 Dodge Stratus Sedan. engine light stays on,


Take the vehicle to any auto parts store that offers to read the fault codes with a scanner for free and find out what that code is. If it shows Upstream or Downstream O2 sensor replace the O2 Sensor. There is a catch, dodge had an issue in the 2000 - 2004. The ECM will show a fault code that indicates the Catalytic converter is faulty. This is actually a faulty Downstream O2 Sensor. If you get a Catalytic converter fault code replace the O2 sensor first if you still have the problem then replace the converter.

Jun 25, 2010 | 2004 Dodge Stratus

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