Will turn over wont start I would like to check the fuel pump by running a hot wire from the terminal plug in next to the stering column to fuel pump but iinstructions say to hook it to G, but I cant find a G on the terminal.

It is very important to look at the four pin connector that plugs onto fuel tank sending unit the hot wire that runs the pump gets loose and burn the connector making intermittent connection they make a replacement plug for this problem also check the connections on the inside i have those fail once.

you will need to check the plug to the pump on top of the tank. check for voltage. then if no volts trace the wires back. also you should check the relay have some one at the relay listening to see if it clicks when you turn the key. no click no volts no volts may be a warn out relay, if it buzzes change it.

) Unplug the main relay and then turn the key from off to ON(II).

2) Use a jumper wire or paperclip to jump terminal 1 to terminal 7 in the main relay plug. Does the fuel pump run?

3) Now use the jumper wire or paperclip to jump terminal 5 to terminal 7 in the main relay plug. Does the fuel pump run?

What I recommed is to remove the fuel pump relay and probe the relay socket with a volt/ohmmeter. One of the terminals in the relay should be grounded. One should be hot. Another should be hot when the jey is on--this is the turn on signal from the pcm. The last terminal goes to the pump and should show a few ohms to ground. Can you run these tests tha report back the results?

It's possible someone used the jumper wire to load side of fuel pump relay, gray wire. That supplies voltage to fuel pump motor, the fuel pump fuse is hot all the time. The fuel pump will run all the time even with key off, running down the battery. They used the jumper because of some kind of problem. Can you unplug the relay and check relay terminals, where the relay plugs in. Use a test light, either a problem on the load or control side of relay. Are the relay terminals numbered, like 30 and 87, maybe 85 and 86 also?

The power to the pump comes through the relay.
To verify the pump circuit is working right, and that the fuel pump needs replacing, do the following test: You will need a voltmeter or test light, and a helper. The pump wire at the tank is a white wire with, it appears, a blue stripe.
This may have been the wire you saw a brief signal on. In fact, it should have a 2 second signal when key is first turned to on-this is to prime the lines and system for starting.
There should be a steady signal on this wire when the engine is being cranked over. The relay should turn the pump on full time during cranking and running. So have a helper crank the engine over while you check for power on the wire. If there is power then, the pump circuit is working right and you probably have a failed fuel pump motor. The only other possibility is a bad ground wire for the pump-which you probably should also check.
You are right about the relay having two hot wires or terminals with key on, so that much is correct. The ecu turns the relay on when it grounds the coil side of the relay.

Hi, I recommend you listen for your fuel pump to come on when you turn the key on (without turning to "start"). The pump may not be priming properly. If it isn't, I recommend you replace the fuel pump relay. If that isn't the problem, you may want to check out the oil pressure switch. To do that, pull the connector off the switch and connect the terminals inside the connector with a big paper clip. If this works to allow the truck to start without pouring gas in the throttle body, replqace the oil pressure switch. The switch is usually next to the oil filter. The relay is usually in the box by the battery. Please let me know if you have questions and thanks for using FixYa.

sounds like the fuel pump is not staying on or the ingtion switch doesn't make in the run position ( happens alot to vehicals take have lots of keys hang on the switch) The sparp going away is easy to check with a test light theres a connector on the distrubutor that has a heavy red wire plugged in that goes to the B+ terminal it should be hot with the key in the run position. if it's dead fix the connection at the ingtion switch ( it's on top of the steering collum and all but one wire will be hot with the key on, that one comes hot in start) if it's good the fuel pump is next it has a fuse on the passenger side firewall next to the fuel pump relay. Fuse bad or relay bad or dirty it'll act this way. The start wire entergizes the pump in crank position. then the oil pressure switch takes over and keeps the pump on. theres 3 wires on the oil pressure switch the center wire works the light the left one is fuel pump fuse power and the right one is the fuel pump. the oil switch can go bad and the connection can go bad the wire can fall off or get broken. the wire to the fuel pump may not get all the way to the pump.. You can add power to any wire on the swich with out hurting anything. all of the wires will be hot with it plugged in and running. unplugged two wires are hot with the key on ones the light ( oil Pressure light) the other is the key on power for the pump with oil pressure the switch closes and the pump comes on and it'll be powered right off the starter as it's cranking. If the switch is leaking oil its likly failed too.

next time it dies check for spark, they have bad contorl modules, when they get hot they die,i would start there,also when you replaced the fuel pump did you replace the wire harness plug to pump? the was another problem was the connector melting and looses contact, hope this helps.

Hi scorioleo, yes, check that the battery terminals are clean. U can clean them up with a wire brush/sandpaper, coat w/ grease to prevent future corrosion buildup. If the terminals have corrosion on them, it could result in the battery havng trouble turning the engine over. Is the engine turning over too slowly (even w/ new battery) in your opinion? Next to check is spark. Pull off a plug wire, if u have a spare spark plug around, attach it to the wire, place away from moving parts, have someone turn key, check for spark at plug tip. Do this out of the sun, and the spark should be easy to see. If u have good spark, next to check is if fuel is reaching spark plugs.After attempting to start several times (only turn key to start position for about 10 seconds, wait about 10 seconds, try again. This is because it's tough on the starter to just keep turning the engine over w/out start up), after several attempts, pull a spark plug and check tip, it should be wet w/ fuel. If it's dry after trying several times to start, u may need a fuel pump (but 1st I'd replace the fuel filter, if it's plugged up, u can have a no fuel at plugs problem). Check this out, give me the results of checking the above, and let me know what u find, we'll continue from there.