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03-06-2007, 08:12 PM
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#1 |
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Registered User
Join Date: Nov 2005
Location: Mount Olive Al
Posts: 65
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Help !!!!!
Last week I bought a 2004 Z71 with a 5.3 motor and today I got a check engine light that came up on the dash. I went to Autozone and they put a computer on it and said that the Knock sensor on bank 2 had low voltage.
I bought another one and I figgered that if I could see what it looks like I will be able to change it out myself. I cannot find it anywhere on the motor. Can anyone out tell me where it is located and will I be able to change it myself? I also need to know if the check engine light will reset after i get it replaced. If not how do you reset the computer. |
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03-08-2007, 11:15 PM
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#2 |
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Howzit?!?
Join Date: Jan 2003
Location: Maryville, TN
Posts: 1,266
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Re: Help !!!!!
I hope someone can help :-)
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Jason Hawaiian-J 70 Longbed, 307, Edelbrock Carb 1404, Edelbrock Intake 2101, Dual Roller Timing chain and gears, 214/214 cam, Comp Roller Rockers, dual Flowmasters. 1999 Chevy Tahoe 2004 Mini Cooper S 71 BMW 2002 - Sold |
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03-09-2007, 12:10 PM
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#3 |
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Truck Enthusiast
Join Date: Dec 2006
Location: Arlington, WA
Posts: 1,346
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Re: Help !!!!!
i believe the knock sensors are under the intake. remove the upper engine cover.there are 2 of them. fwd and aft.
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'85 swb |
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03-09-2007, 09:18 PM
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#4 |
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Registered User
Join Date: Nov 2005
Location: Mount Olive Al
Posts: 65
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Re: Help !!!!!
I went back and bought the sensor figgering that if I can see what it looks like then I can change it my self.
Boy was I wrong ,they are under the intake manifold. I don't have the time to work on it so I carried it to the dealer to work. The whole problem was caused by a Rat that made a nest under the intake, he had eaten the wire and shorted it out. Anyway the truck was out of warrenty and it cost me $352.25 to get it fixed. I have only had the truck for 2 weeks before this happened I hope I didn't bring the Rat home when I bought it. I hate RATS!!!!! |
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03-09-2007, 09:49 PM
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#5 |
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Project92 SWB stepside
Join Date: Feb 2003
Location: Louisville KY
Posts: 4,793
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Re: Help !!!!!
Ouch Damn rats!!
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92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448 |
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06-30-2010, 10:48 PM
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#6 | |
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Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: Help !!!!!
Quote:
We looked all over the darn engine, went to the Auto Zone web-site and looked at a knock sensor, but still could not figure out where the heck they were. Finally I called my brother, a mechanic, and he told me where the darn things were under the intake and what had to be done to replace them. What a pain in the behind, my old '92 GMC K-3500 is so simple compared to the 2000 5.3. My son is going to drive the truck for a while before he decides what to do. We should be able to change them, but really don't want to do it right now.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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07-02-2010, 06:59 PM
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#7 |
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Registered User
Join Date: Nov 2008
Location: manly iowa
Posts: 390
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Re: Help !!!!!
Its really not hard to change these out. Even a first timer should be able to change them out in under 2 hours. I've done a few of em and can have em done in say an hour give or take.
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