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Service engine soon light comes and goes
Sent to Car Experts March 06 02:03 PM

This is a 2000 chevy silverodo, V6 engine. HAD IT IN GM SHOPS SEVERAL TIMES. REPLACE FUEL PUMP, FUEL PRESSURE SWITCH AND FUEL FILTER, AS WELL AS CATALLYTIC CONVERTER. LIGHT STILL COMES AND STAYS ON FOR AWHILE AND THEN GOES OFF AT TIMES. 127,000 MILES. pLEASE ADVISE.

 

Optional Information:
2000 1500 sILVER RADO SILVER RADO V 6

Already Tried:
GM SHOP INSTALLED FUEL PUMP, FILTER AND FUEL PRESSURE SWITCH.

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Info Request
March 6 3:17 PM (1 hour and 14 minutes and 22 seconds later)
         

Hello Customer (name blocked for privacy) and welcome to Just answer.com, Super mechanic here. I just have a question about your Silverado.

Do you know what trouble code(s) it has?

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Super mechanic -- Auto Mechanic -- 98% Positive Feedback on 886 Car Accepts
ASE master, 30 years
Reply
March 7 8:42 AM (17 hours and 24 minutes and 19 seconds later)
         
yES, ACCORDING TO THE COMPUTER AT AUTO PARTS STORE, THE PROBLEM IS IN BANK 1 ?
IF THE LIGHT IS ON OR OFF, IT STILL GIVES A HESITATION AND SOMETIMES POPS DOING TAKE OFF. THE OLDER VEHICHLES WOULD AUTOMATIC INDICATE THAT A PROBLEM IS IN THE CARBUURETOR. I'M NOT FAMIALAR WITH THIS NEW STUFF.
Customer (name blocked for privacy)
Info Request
March 7 9:27 AM (45 minutes and 22 seconds later)
         

I understand how you must feel. It sounds like there may be a sensor problem. Would you be able to have them record the code that it has so that we can pinpoint the area of concern?

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Super mechanic -- Auto Mechanic -- 98% Positive Feedback on 886 Car Accepts
ASE master, 30 years
Reply
March 7 3:29 PM (6 hours and 1 minute and 48 seconds later)
         
YES, I WILL GET BACT TO YOU AS SOON AS POSIBLE.
Customer (name blocked for privacy)
Info Request
March 7 4:27 PM (58 minutes and 26 seconds later)
         
Thanks
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Super mechanic -- Auto Mechanic -- 98% Positive Feedback on 886 Car Accepts
ASE master, 30 years
Reply
March 9 12:20 PM (1 day and 19 hours later)
         
HELLO:

THE CODES ARE PO171 AND P174
Customer (name blocked for privacy)
Answer
March 9 1:10 PM (50 minutes later)
         
ACCEPTEDCheck Mark

The codes you have are an indication that the engine is running lean on both banks.

You will really want know what the fuel pressure is, even though you have done work to the fuel system. However, there might be problem with the injectors or the poppets at the ends of the injector tubes.

You can have an injector balance test done, (at the dealer) or you may want to try to run a good cleaner through them



Remember you DO NOT have to accept until you are 100% satisfied with the answer, but, *WE DON'T GET PAID* unless you hit *ACCEPT*
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Super mechanic -- Auto Mechanic -- 98% Positive Feedback on 886 Car Accepts
ASE master, 30 years
Reply
April 4 2:05 PM (26 days later)
         
Relist: I still need help.
I took your advice and spent about $100.00 on K-44 gassystem cleaner, and had the fuel pressure test.

Results from Ourisman Chevrolet: Nedds a fuel pump, fuel filter and catalytic converter.

Where as they installed a new fuel filter and fuel pressure switch in July of 2007. a fuel pum and catalytic converter was installed by another shop in Oct. of 2007.

So, you see what I am up against. I don't trust them. I'd rather pay your experts the info fee.

Could it possibly be the thottle bnody?
Customer (name blocked for privacy)
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