20 Most Recent 2003 Chevrolet Silverado Ss Questions & Answers

There is no fuse specifically dedicated to the fuel pump on this year and model of Suburban. This Suburban is equipped with dual tanks and as such has two relay switches, primary and secondary, both of which are located at the main fuse box in the engine bay, that power up the respective fuel pumps.

The closest fuse (15A) controlling either of these relays also powers up the main control module (located beside and below the main fuse box). So, if one needs to disconnect the fuel pumps from functioning, then the only effective method is to disconnect the fuel pump relays.

drive shafts or u joints

Hi, this is a pretty common problem on these Silverado instrument clusters. We can repair it for you or provide you with the parts to do it yourself. Click here to learn more about these silverado instrument cluster problems: Dr Speedometer Instrument Cluster Repair Speedometer Repair Guage...

Take your truck to a GM dealer and have the Body Control Module checked. The bcm controls most electrical and display functions inside of your vehicle.

GM had gauge cluster problems from 2000-2005. Bad stepper motors. On those units you have to replace the cluster or rebuild it with new stepper motors.

replace instrument panel cluster

You have an engine management problem could be blocked particulate filter or engine sensor you will need a diagnostic plug into the obd connector with a computor to read the faults stored in the engine control unit to be able to diagnose further

This could be but not limited to a faulty O2 sensor. Other chances could be a dirty air filter, fuel filter, MAF sensor or even a small vacuum leak from the engine head gasket. If there is a CEL triggered, it would be better to connect the diagnosis tool and check for the codes as this might help you in locating the exact cause of the problem.

check power steering pump .check fluid level.

if theres a knock when you start it and it goes a way after it warms up you may be a little low on oil or cuz its a chevy it just needs to warm up before driving naturally a bigger engines gonna take longer for oil to move through all the parts especially in colder weather. maybe even check and see if it needs a valve adjustment.