Question about 1984 Chevrolet Chevy
Check to see if the cam shaft is turning (broken belt). IF the fuel pump is mechanical it is possible to put the lever on the wrong side of the cam lobe and it may have jammed the cam.
Posted on Dec 28, 2013
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Posted on Jan 02, 2017
SOURCE: 1987 S-10 CHEVY
Do you hear the fuel pump buzz for a few seconds when you turn on the key? If not you have an electrical problem. If you do, then trace the fuel line from the tank to the first point where it connects to something and loosen the connection. Turn the key on and see if you get fuel. If not then the problem is between there and the tank. If you do then try other end . Keep doing this at every junction and you should find the cause of your problem. Hope this helps.
Posted on Sep 22, 2009
Fuel pump power comes from a relay which is usually under the hood but not always, it can also be behind one of the kick panels next to the drivers left foot or passengers right foot. Are you getting power to the injectors as injector power usually comes from a different relay or direct from the ignition switch. The injectors are grounded by the control module so they should have power all the time or when the ignition is turned on. Check out the relays and also check the wiring harness connectors both under the hood and through the firewall. Next, check for the various engine signals to the control unit. If a cranking or cam angle signal is missing, the control unit will disable the injectors and fuel pump.. buy or borrow a copy of the workshop manual (try the local library for this) as most have the procedures and test methods to check for issues..
Posted on Dec 07, 2009
You are on the right track, the problem which is common is the fuelpump, the problem is , theres an internal antiflow valve the goes bad inside the pump, what happens is the fuel runs back into the tank and empties the lines and injector rail, when you go to start the truck it now take time for it to pnump fuel back through the lines to fuel rail and injectors and pressurize, so it take so cranking to get going. a little neat trick to be sure is to turn key on then off three times and then it should fire up, if it does then its the fuelpump, you will need to drop the tank and replace the fuelpump asm, the pump will still operate, we have customers that have had this problem for a couple of years and still havent repaired it due to the cost, they dont mind the long crank time to start, if you are going to repair drive until gas is about empty, this will help alot when its time to drop the tank,heres a picture of the fuelpump asm, hope this is helpful, have a good day.
Posted on Nov 08, 2010
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