Fuel system control module
June 4th, 2019, 11:12 PM
#21
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What are the symptoms for a faulty fuel system controlmodule?My 2007 Chevy Silverado
07 5.3 are these the actual symptoms of a fuel system control module failure? Truck won’t idle random misfire PO 300 Seems to run smoother at higher rpm’s also hard shift between first and second gear sometimes hard starting using more fuel than normal almost double! Ok changed module no difference Had truck scan today. Mechanic said I needed new O2 sensor today sensor one bank one so replaced it. This helped with fuel problem is better but he says it has a Random misfire in cylinder 5&7
Last edited by byron nygren; June 11th, 2019 at 8:58 PM. Reason: Wanting to know if the vehicle will run without fuel system control module working 100%
June 4th, 2019, 11:40 PM
#22
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Does fuel system control module need to be programmed by dealer
I own a 2008 Silverado 5.3 liter 4x4. My fule system control module fuse keeps blowing. I have read that there are problems/recalls on these modules for Chevy's. My question: Does anyone know the location of this module on my truck? I have read that it is above the spare tire by the bumper. Also, the dealer said that it may need to be programmed to the engine control module of the truck (should a new one be installed). Any input would be welcome.
Last edited by byron nygren; June 5th, 2019 at 12:01 AM.
December 23rd, 2019, 12:02 PM
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2008 silverado
They diagnosed it, but couldn't tell me the exact problem. They told me it could have been either my FSCM, or my fuse box is corroded. They offered to replace both parts for a pretty penny but unable to guarantee a fix. So i'm reluctant to return to the dealer, yes.
It seems as though the truck is shuddering due to lack of fuel when I accelerate? Also, when I started it this evening I noticed it turned over a few times before firing up. That makes me believe it's not getting enough fuel as well.
It seems as though the truck is shuddering due to lack of fuel when I accelerate? Also, when I started it this evening I noticed it turned over a few times before firing up. That makes me believe it's not getting enough fuel as well.
Have you resolved the issue? I am having similar issues with my 2008 Silverado. I replaced the fuel pump and now have loss of power, wont exceed 4000 rpms and does a slight shutter when accelerating
August 30th, 2020, 1:01 PM
#25
I have an 09 Silverado with the 5.3, it shut off on me had it towed to the dealer where they told me it was my fuel pump. I replaced the pump and my engine light was still on. I was then told it was the fuel flow control module. I replaced this and my light is still on. Truck runs good I'm just getting terrible gas mileage
June 7th, 2021, 4:40 PM
#26
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same here! Just bought a 2009 silverado 1500 4x4 5.3 from fleet auction. It died on my so I towed it home and hooked it for my scanner which read failure to comunicate with fpcm. Put it on the hoist and it is nowhere to be found. I'm really beating my head against the wall on this 1! Any tips or leads on where it could be would be greatly appreciated. Thanks
June 23rd, 2021, 7:34 PM
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same here! Just bought a 2009 silverado 1500 4x4 5.3 from fleet auction. It died on my so I towed it home and hooked it for my scanner which read failure to comunicate with fpcm. Put it on the hoist and it is nowhere to be found. I'm really beating my head against the wall on this 1! Any tips or leads on where it could be would be greatly appreciated. Thanks
On SUVS (YUKON TAHOE ESCALADE) under the driver seat in front of the gas tank. On trucks it should be under spare tire or in same place as SUVs
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