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Bravada 2002 with iddle go up and down ,I change sparks plug
Hi Bravada 2002 with iddle go up and down ,I change sparks plug still the same … read more
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2001 Suburban: 4x4..Have been experiencing intermitent rough idle.
2001 Suburban 4x4, 5.3 l, aprox 148k miles. Optima yellow top battery for about 5 years. Have been experiencing intermitent rough idle. Will sometimes drop to 250 rpm. Sometimes stalls, sometimes not,… read more
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2001 GMC yukon: with a 6.0 motor..sticking..assembly
I have a 2001 GMC yukon XL with a 6.0 motor. I am having trouble with the throttle sticking. It is in the butterfly in th throttle assembly. What should i do to clean and lube this.… read more
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2002 chevy: 5.3 4x4 .I went..12 mpg..engine codes..cold air intake
Hi, I have a 2002 Chevy sileradoo 5.3 4x4 .I went from 16-19mpg to 10-12 mpg,the plugs and wires are about a year old it runs great.There aren't any engine codes,I don't know what changed.I also tried… read more
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I have a 2004 chevrolet Tahoe Z 71 4 x 4 with a 5.3. Most of the time it runs good but 1 or 2 times per week when you take off from a stop it takes off and then it stalls. It doesn't die but acts like… read more
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2003 Tahoe: flex fuel..500 miles..I decided to check the spark plugs
Hello again, got another question; My 2003 Tahoe 5.3 flex fuel has 127 500 miles on it. I decided to check the spark plugs. They were the original NGK/Delco plugs gapped to about .63. I put in new NGK… read more
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2005 Trailblazer LS: V6..replaced MAP sensor and it keeps coming back
I have a 2005 Trailblazer LS V6. It has a P0106 code that I have replaced MAP sensor and it keeps coming back. Any advice on what to do next. I've checked for vacuum leaks… read more
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I just did a small tune up on my 04 GMC Yukon. (Plugs and wires.) At the same time I hooked up a K&N filter kit. The negative cable on the battery was disconnected for about 3 hours. Upon start up aft… read more
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2005 GMC Yukon SLT: L..V8..The vehicle has 97500 miles on it
My wife and I have a 2005 GMC Yukon SLT Autoride, with the 5.3 L V8 (vin T). The vehicle has 97500 miles on it. We recently relocated from idaho to oklahoma. In idaho we typically got 15 to 16 mpg in … read more
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Chevy: engine starts to shake and sputter..it goes away
i have an 04 Chevy Silverado with a 5.3 Under low rpm (1-2 thousand) and light throttle pressure, the engine starts to shake and sputter. When given more throttle or at higher rpm, it goes away. It al… read more
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Chevy Truck: idling..shifting..battery went dead..I jump it battery
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2000 Lumina: 000 miles..automatic manually..stop light..trans dead
My 2000 Lumina w/130,000 miles requires me to shift tha automatic manually, as it starts out real slow from a stop light and will not work well in drive ...it has sat for about a week and we got it st… read more
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2002 suburban: runs fine until..air conditioner..it surges..stall
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2004 chevy: km..LIGHT coming..WHEN I PUT THE CODE READER..AIR FLOW
I HAVE A 2004 CHEV AVALANCHE Z-71 40000 KM I HAVE ENGINE WARMING LIGHT COMING ON. WHEN I PUT THE CODE READER ON,IT COMES UP PO101(MASS AIR FLOW PREFORMANCE PROBLEM). COULD THERE BE A PROBLEM SOME WHER… read more
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2007 gmc: acces for over 5-10 minutes the battery goes completly dead
I have a 2007 gmc sierra crewcab with the 5.3. I just bought the truck 2 weeks ago. When I turn the key to run or acces for over 5-10 minutes the battery goes completly dead. I took the truck to a loc… read more
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2000 GMC Yukon: emissions..idle speed..it drops to 300 - 350 rpm
Ihave a 2000 GMC Yukon w/5.3l engine and california emissions. The idle speed drops soemtimes so low that the engine stalls. Other times it drops to 300 - 350 rpm then picks up to normal (550 or so). … read more
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2004 GMC Sierra 1500: running rough..DTC..lean..upstream O2 left bank
2004 GMC Sierra 1500 5.3 running rough. Sets DTC 0171 Fuel trim system to lean at upstream O2 left bank. What is causing this. O2 Sensor?Also sete multiple misfire code 0300.39496.2052148148… read more
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2001 GMC Yukon: My check engine light came..engine code
My check engine light came on my 2001 GMC Yukon 5.3 L and the engine code is for running to lean bank 1 and bank 2..... What is the possible problem?… read more
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Ron Z.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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