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Recent Catalytic Converter questions

85 chevy caprice with recent engine replace. Car idles rough

HelloJA: Hello. How can we help?Customer: 85 chevy caprice with recent engine replace. Car idles rough between 10-30mphJA: Is the rough idle intermittent or consistent?Customer: ConsistentJA: Are you fixing your Caprice yourself? What have you tried so far?Customer: The mechanic who changed the engine told me i should replace map sensor tps and iac valveJA: Anything else you want the mechanic to know before I connect you?Customer: It backfires not often

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eric remington

associates degree

214 satisfied customers
Working on an 04 Chevy Blazer 4.3L. my scanner reads 4 o2

working on an 04 Chevy Blazer 4.3L. my scanner reads 4 o2 sensors, but there are only 3 sensors on the vehicleJA: Have you located all of the vehicle's oxygen sensors? Are the wires leading to and from each intact and in good shape?Customer: yesJA: Are you fixing your Blazer yourself? What have you tried so far?Customer: i suspect a bad catalytic converter. bank1 sensor 2 is acting wrong, but there is no sensor 2 for bank 1JA: Anything else you want the mechanic to know before I connect you?Customer: no

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Gary

Vocational, Technical or Trade Scho

27,174 satisfied customers
Check engine light is on I'm pulling code P0137, P0138,

Check engine light is on I'm pulling code P0137, P0138, P2270. Check engine light is on. 2012 Chevrolet express 6.0 L gas with 380,592 Miles on the odometer well-maintained vehicle. Please advise

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K. Wiggins

Automotive Consultant

Associate Degree

3,292 satisfied customers
I have a 2007 2.2L chevy cobalt with codes and a continuing

I have a 2007 2.2L chevy cobalt with codes and a continuing "reduced power message"

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Chad Farhat

Owner

Associate Degree

5,218 satisfied customers
I have taken an older 2004 Avalanche as a project and lift

I have taken an older 2004 Avalanche as a project and lift up a bit 6" body and 3" suspension and also 35" mud tires. Not sure if its the nature of the beast or if something is not right but its an extreme gas guzzler. With easy non hard driving I am getting 20L/100kms. Even with factory rims and tires its not much better 265 70 17. There are no engine lights and the truck performace is acceptable. Regardless I think this is way excessive. Please assist.

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Ron

Automotive Tech

Vocational, Technical or Trade Scho

30,064 satisfied customers
2013 Chevy Equinox 100 misfires cylinder 1 check engine

2013 Chevy Equinox 100 misfires cylinder 1 check engine light on it's at the dealership now and they said they are flushing the fuel injectors and putting a solvent/cleaner in there - will drain and try to restart the car and see if its fixed.JA: Does the light stay on, or does it blink?Customer: the light was on when I brought it in (first time light came on) yet when they saw my warranty was expiring in two days the light mysteriously shut off by itself I told them to run a code history and I wasn't leaving till they figured something outJA: Are you fixing your Equinox yourself? What have you tried so far?Customer: no it is still under warranty and is at the dealership now they said they couldn't figure it out - went higher up and was told about a service bulletin so they are doing work per bulletin nowJA: Anything else you want the mechanic to know before I connect you?Customer: just want an idea if this is a serious problem that could seize my engine if not fixed

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Eric

Retired

N/A

28,808 satisfied customers
I own a cherry 2003 Chevy Astro LT Van; however, the exhaust

I own a cherry 2003 Chevy Astro LT Van; however, the exhaust system is loud. Any suggestions how I might quiet this system down, or was this make, model & year Chevy made that way?

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Eric

Retired

N/A

28,808 satisfied customers
Jared I did the relearn on the new crank sensor drove it to

Jared I did the relearn on the new crank sensor drove it to It up a hill It start to buck and misfire and lost all power I tow it back I had a code for p0101 I check for vacuum leaks if I start it it idles very poor no power im at a lost on this thing

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Jared D

Shop Supervisor

Bachelor's

2,988 satisfied customers
Whatcriukx be the best way to diagnose a po420/po420p obd2

Whatcriukx be the best way to diagnose a po420/po420p obd2 fault codeHow can I inspect and diagnose wether it catalytic converter or one of or both oxygen sensors

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Ron

Automotive Tech

Vocational, Technical or Trade Scho

30,064 satisfied customers
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