Question about 2002 Chevrolet Express

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2002 Express 5.7 engine noise

My 02 express has been making a noise like an exaust leak. Is this common? Is it a warranty issue?

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This is common. Usually it happens at the exhaust gaskets from the manifolds to the catalytic converter. Replace the exhaust gaskets.

Posted on Feb 26, 2009

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I have a 2002 Chevy Express 1500. I have a engine code of p0420. I have changed all of my o2 sensors , gas cap , mass air sensor & the cat twice. Dose anyone know what's the deal with this????


Ok i see you replaced your cats Now the question is did you use oem parts ?? Cause that can make all the difference! And do you have dual cats if so did you replace the one twice or both ?? Also check your ground wire for corrosion or a loose connection this ground can be found either on the right front of the engine or the rear of the engine. one more thing just make sure there are no leaks before the converters. Good luck

Jul 01, 2011 | 2002 Chevrolet Express

1 Answer

Diy on fuel pump for 02 chevy express cargo van.


The fuel pump is located in the gas tank aquire a repair manual to have a detailed decription of the procedure in order to prepare for this job.

Jul 12, 2009 | 2002 Chevrolet Express

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Engine code p0420 on 2002 Chevrolet Express Van V8


Hello!

the code you speak of relates strictly to the catalytic converter. it is possible there is a faulty sensor, however that choice is highly unlikely. Catalytic converters carry a 5/50 7/70 and 8/80 warranty depending upoin the state you live in...this may be a repair covered under manufacturers warranty. this code is becoming very prevelant in many auto lines as a result of the insurgence of ethanol dilution of our fuels. the "10%" ethanol sticker is located on most pumps. Most vehicles on the road today are not flex fuel capable and this ethanol is wreaking havoc on our fuel and emission systems, especially the catalytic converters. the converters are caked with deposits from the ethanol, reducing its effeciency. if your have access to well worth branded products (not available in ANY parts store, typicaly dealers and repair shops only) try adding on succesive tank loads of fuel their product called Octi-Plus. this products helps remove ethanol products, and very well may save yoiu big $$$ for that converter repair bill...i hope this helps..check out this link....

http://www.wellworthproducts.com/

ps i appreciate your 4 thumbs up if this helps you!

Jun 18, 2009 | 2002 Chevrolet Express

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NO POWER, STRONG SMELL OF FUEL


you are getting far too much fuel or not enough air.check the airfilter first and the 02 sensor.a code scan will tell you which area is failing.

Jun 13, 2009 | 2002 Chevrolet Express

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Mitsubishi Lancer ES '02 - Rattling noise in 1st gear...


I think you might need to ask someone to throttle up the car and you look underneath to try locating the rattling noise. Don't forget that this model runs the exaust pipe in front of the motor so it might be an exaust rattle as well??
Cheers

Feb 07, 2009 | 2002 Mitsubishi Lancer

1 Answer

NO REAR BRAKES


I would check the proportional valve.

Jan 19, 2009 | 2002 Chevrolet Express

1 Answer

2002 Chevy Express Van


the van makes a winding noise when running,it tends to shake a little bit and the tempature needle does not rise above 160 degrees what could be wrong

Nov 06, 2008 | 2002 Chevrolet Express

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