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Recent Catalytic Converter questions

I've heard there is a widespread problem with the

I've heard there is a widespread problem with the stabilitrak, ABS, and traction control for 2007-2013 suburbans, Avalanche, Yukons, and Tahoes. What is the real fix for this? I heard onstar issues, ABS modules, etc.

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Chad Farhat

Owner

Associate Degree

1,418 satisfied customers
GMC 2000 Envoy with 4.3L Vortec engine ------ SES light came

GMC 2000 Envoy with 4.3L Vortec engine ------ SES light came on 2 days ago. Had computer scanned and displayed P0147 code. Where is sensor located? How difficult is sensor to replace?JA: Just to clarify, what are the exact lights you're talking about?Customer: Lights?????????? Only light was "Service Engine Soon" (SES).JA: Are you hoping to fix this yourself? What have you tried so far?Customer: Have not tried anything yet. Hoping to fix myself. Very knowledgeable DIY! LOL.JA: Anything else you think the mechanic should know?Customer: Nope! Just given the info.

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Mike V.

technician

High School or GED

27,230 satisfied customers
99 Silverado 2500 5.3. Truck came in with a code P0420 and

99 Silverado 2500 5.3. Truck came in with a code P0420 and the MIL would come on and go off at will. I connected my scanner and went for a road test. O2 readings were as follows--- hot idle o211-70-795 O212410-780 O221-060-790 O222-080 Driving down the road, cruise set 1800rpm O211-090-810 O212-600-790 O221-060-795 O222 685-690 Oxygen sensor or catalytic convertor

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Ron

Automotive Tech

Vocational, Technical or Trade Scho

26,896 satisfied customers
I have a chevy tahoe early 2000 (square model before body

I have a chevy tahoe early 2000 (square model before body change) it was overheating so I replaced the radiator and problem fixed. However I started it, drove it, restarted and drove, turned it off and no start just cranks. Undid the battery cable for 30 mins and started right up. Replaced fuel filter, drove it 7 miles and it died while driving on the highway and now won't start again. Any thoughts on what this could be?

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Tim's Auto Repair

Mechanic

High School or GED

18,002 satisfied customers
1997 chevrolet silverado 1500 V8 5.0. Check engine light.

1997 chevrolet silverado 1500 V8 5.0. Check engine light. Diagnostic suggests O2 sensor bank 2 sensor 1. Was told it's after catalytic converter. Replaced, reconnected battery, drove 20 some miles. Light still on. It was suggested normal driving for 2 to 3 days before light goes off. Is that correct?

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Ron Z.

Vocational, Technical or Trade Scho

22,224 satisfied customers
I was wondering what is going on with my car I was driving

I was wondering what is going on with my car I was driving it yesterday and my car my engine light came on and my car wont go in reverse I haven't check my transmission fluid in over a year because there is no dip stick I have a 2010 chevy equinox ltz.JA: Does the light stay on, or does it blink?Customer: its staying onJA: Are you hoping to fix this yourself? What have you tried so far?Customer: I haven't tried anything yet I was going to go my transmission fluid checkedJA: Anything else you think the mechanic should know?Customer: no that's it

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Gary

Vocational, Technical or Trade Scho

25,190 satisfied customers
I have a 1999 chevy truck that started running rough and has

I have a 1999 chevy truck that started running rough and has a pinging noise coming from the exhaust area when its idling or running slowly

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Chris (aka-Moose)

Vocational, Technical or Trade School

49,430 satisfied customers
This will be winded but it is a problem I consider important

Hello, this will be long winded but it is a problem I consider important which has been ongoing for over 9 months and remains unresolved. I'm a taxi driver and I drive a 2004 Safari. I am constantly stopping to pick up or drop off passengers during my 12 hour shift. It is absolutely unavoidable that one or both of the front windows are sometimes open as I sit and idle, loading or unloading passengers. During this time and especially when the sliding side door is open, the smell of exhaust fumes is volatile and overwhelming to the point where it burns my eyes, my nasal passages and makes me feel dizzy and nauseated. Passengers have complained and continue to make frequent negative comments. The fleet mechanics claim to have thoroughly checked the exhaust system for leaks and they swear there are none. I've asked if it might be a problem with the catalytic converter and they say no. At this point they basically shrug their shoulders. It is a problem unique to this vehicle as the rest of the fleet consists in part of probably another 25 Astrovans and Safaris, none of which emit such horrible exhaust fumes. Another driver who drives two 12 hour shifts a week in this same cab has complained as well, in fact he refuses to drive it if there is another cab available, or he will switch into a different cab if one becomes available during his shift. A third driver who filled in a vacant shift that was available in this cab, just once, complained and wrote up the problem as well. So I am wondering what you might think. Are there some Safari vans that emit particularly bad exhaust fumes and there is nothing that can be done about it? Is it possible that the mechanics are overlooking something? I understand that exhaust emission tests are no longer standard protocol these days, but I do wonder what the results of such a test would reveal. I apologize for the length of my question, but I am at the point where I feel I have no alternative but to take matters into my own hands in seeking help. I really don't look forward to feeling sick and dizzy at the end of every shift.JA: How old is the transmission? Have you noticed any leaking?Customer: The vehicle has 225,000 miles on it. I'll assume that is the age of the transmission. I have not noticed any leaks.JA: Are you hoping to fix this yourself? What have you tried so far?Customer: However...it is the job of the fleet inspectors to check and fill the fluids at the start of every 12 hour shift. Could they be over filling the transmission fluid?JA: Anything else you think the mechanic should know?Customer: So far I have followed the standard protocol within this taxi company whenever a mechanical problem or issue arises, describing and documenting the problem in writing. The results have been as I described them to you, unfortunately. If I thought I could fix the problem I'd sure be willing to tackle it. It's not my job though and it would probably be frowned upon, to say the least. As it stands now, one of the mechanics who recently spent several days with this cab in one of the bays repairing some rear end damage approached me afterwards and admitted to me that he understands now what I mean by the excessively harsh exhaust fumes, but that is as far as it went.

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Eric

Retired

N/A

25,804 satisfied customers
I have a 99 gmc sonoma. 2.2L Manual transmission. When I

I have a 99 gmc sonoma. 2.2L Manual transmission. When I accelerate in first, second and third gear, it the truck bucks like when I first started to learn to drive. It does that when it's going over hills or accelerate. I've changed the fuel filter, fuel pump, spark plugs, wires. What could cause it to buck that bad?JA: Has the clutch been slipping? Are you having any trouble shifting?Customer: NoJA: What year is your Sonoma?Customer: 99JA: Are you hoping to fix this yourself? What have you tried so far?Customer: Yes, I'd like to take care of it myself. I've replaced the fuel filter, fuel pump, spark plugs, wiresJA: Anything else you think the mechanic should know?Customer: It does it when accelerating

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Dan

Automotive Technician

Vocational, Technical or Trade Scho

16,770 satisfied customers
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