My car was chugging for a while but now it wont start it sounds like it wants to start but it wont crank and i cant locate the relay under the hood
Chevy's don't use a relay like fords, rather they have a solenoid on the starter that your positive battery cable runs to.
Sounds like a fuel delivery issue, you would have to have fuel pressure checked, you most likely have throttle body injection..
SOURCE: Location under hood for fuel pump relay on 2002 Mazda Millenia S
JUST RELEASE THE PRESSURE AT THE FUEL PRESSURE TEST PORT ON THE FUEL SUPPLY RAIL THAT SUPPLIES THE INJECTORS, IT IS A METAL VALVE LIKE A TIRE VALVE, THAT IS THE FACTORY RECOMMENDED METHOD..
SOURCE: where is fuel pump relay on 1989 chevy suburban 1500
passengers side firewall behind plastic cover thats about 12 inches long with a bump in the middle,where the battery cables hook together ,there should be 2 relays there and i think its the one closest to the drivers side
SOURCE: I NEED A DIAGRAM OF THE FUSEBOX AND RELAY BOXES
On the cover of the fuse box indictes what each fuse/relay controls
SOURCE: my 2002 honda civic ex vtec sputters and chugs
This model car has a "permanent" Fuel filter/pump combination. It is not meant to be changed. The filter/pump combo is in the fuel tank and can be accessed from under the back seat. I am highly doubtful that the filter is the malfunction you are experiencing. When your vehicle has low power and runs rough rough at low RPM's and then starts misfiring at 3500 RPM, it sounds like your timing belt has stripped some cogs and is in the process of shredding. THIS IS AN ENGINE EMERGENCY!!! IF THE BELT FAILS COMPLETELY AT HIGH RPM IT WILL DESTROY YOUR ENGINE!!! Do not fool around with changing sensors until you have had this checked out. If your DTC is saying that the MAP (Manifold Absolute Pressure) sensor or TDC (Top Dead Center) sensor is bad, check the timing belt.
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