vehicle won't turn over
#1
vehicle won't turn over
I have a 1996 GMC Sierra 6 cylinder 4.3 liter engine. Wires on the sending unit got fired and fused together. I replaced the unit and wires. I also replaced the fuel pump. There is no fuel going to the pressure release value. THe truck won't turnover. Do you have any suggestions on what could be the problem?
Mystic434
Mystic434
#2
It's late, but before I sign off tonight I should ask for clarification on problem.
You replaced the fuel pump sending unit and wires.
You replaced the fuel pump.
You have no fuel pressure.
I was not aware of a fuel pressure relief valve for that year? Is it what you say it is?
The engine will turnover, but will not start?
Or
The engine will not turnover at all?
You replaced the fuel pump sending unit and wires.
You replaced the fuel pump.
You have no fuel pressure.
I was not aware of a fuel pressure relief valve for that year? Is it what you say it is?
The engine will turnover, but will not start?
Or
The engine will not turnover at all?
#4
I think you are trying to describe a 'no start' condition, but you also imply it will not 'crank' with the starter motor.
It cranks with the starter motor but engine will not start and idle?
Or, it does not crank ?
It cranks with the starter motor but engine will not start and idle?
Or, it does not crank ?
#6
Describe what happens when you turn the key.
Do you hearing any noise? A clicking sound?
Did you install the battery with the + - post reversed?
Does the radio and head lights work?
When did 'no crank' condition begin,, immediately after you replaced the battery or immediately after you replaced the fuel pump?
Do you hearing any noise? A clicking sound?
Did you install the battery with the + - post reversed?
Does the radio and head lights work?
When did 'no crank' condition begin,, immediately after you replaced the battery or immediately after you replaced the fuel pump?
#9
Test your battery voltage with any voltage test. It should read about 12 volts. It is probably a bad battery. You could also try charging the battery with a charger if the battery is as new as you say it is.
#13
If the battery is good as you say it is, then you have a problem in the battery/starter cable, or the starter is bad.
There are 2 things that can be tested, and more than one way to test them.
1. Perform a voltage drop test on the starter cable while someone is cranking the engine. Press one probe of the your VOM (voltage meter) to the positive battery post itself, (not the cable terminal). Press the other probe to the starter bolt where the thick cable attaches. Again, press to the threaded bolt, not the cable terminal. You will need a jumper wire, say 3 ft to be able to reach the starter. Have someone crank the engine for 2 or 3 seconds and record the voltage reading at the time of cranking.
2. Remove the starter and take it to an auto parts store that performs free starter testing.
There are 2 things that can be tested, and more than one way to test them.
1. Perform a voltage drop test on the starter cable while someone is cranking the engine. Press one probe of the your VOM (voltage meter) to the positive battery post itself, (not the cable terminal). Press the other probe to the starter bolt where the thick cable attaches. Again, press to the threaded bolt, not the cable terminal. You will need a jumper wire, say 3 ft to be able to reach the starter. Have someone crank the engine for 2 or 3 seconds and record the voltage reading at the time of cranking.
2. Remove the starter and take it to an auto parts store that performs free starter testing.