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2007 Chevrolet Silverado LT P0463, P0449, P0300, P0036 Diagnostic Help After Fuel Pump Replacement

Model: 2007 Chevrolet Silverado LT Fault Code: P0036 Posted: 2018-09-20 18:46

I recently ran a diagnostic on my 2007 Chevrolet Silverado LT and retrieved the following OBD2 fault codes: P0463, P0449, P0300, and P0036. I have already replaced the fuel pump, but the codes persist. I'm seeking advice on potential root causes and solutions to resolve these issues. Any insights or recommendations would be greatly appreciated.

Related fault codes
P0036P0300P0449P0463
Comments (2)
Anonymous 2018-09-20 22:52

Have you checked live data from the vehicle's onboard systems? Are there any noticeable symptoms beyond the check engine light? It's highly unlikely that all four codes stem from a single fault, so it's probable the issue has been present for some time.

Anonymous 2018-09-21 18:47

Yes, the check engine light has been on for an extended period. Currently, it blinks, and both the traction control and stability control lights are illuminated, with messages indicating 'Service Traction Control' and 'Service Stability Trak'. The gauges intermittently function—sometimes working, sometimes not. When they do operate, the fuel gauge consistently reads empty. Additionally, the vehicle idles roughly and runs poorly under load.