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car wont start

  • Thread starter Thread starter 1985 5.0
  • Start date Start date Aug 7, 2006

1985 5.0

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Apr 10, 2005
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Polkville, North Carolina
Aug 7, 2006
#1
  • Aug 7, 2006
  • #1
My car will not start after we have put on a new starter and a new solenoid switch. the battery is fine because the radio and lights will cut on, it just wont turn over. any help is greatly appreciated.
 

blkcobra50

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Jul 24, 2006
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Aug 7, 2006
#2
  • Aug 7, 2006
  • #2
1985 5.0 said:
My car will not start after we have put on a new starter and a new solenoid switch. the battery is fine because the radio and lights will cut on, it just wont turn over. any help is greatly appreciated.
Click to expand...

Does it the starter crank?
 

jrichker

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#3
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Here's a checklist:

Since some of the tests will bypass the safety interlocks, make sure that the car is in neutral and the parking brake is set. Becoming a pancake isn’t part of the repair process…

Check battery, terminal connections, ground, starter relay switch (also known as solenoid) and starter in that order.

A voltmeter is handy if you are familiar with how to use it to find bad connections. Measure the voltage drop across a connection: more than .5 volts across a connection indicates a problem.
See http://www.fluke.com/application_notes/automotive/circuit.asp?AGID=1&SID=103 for help


1.) Will the car start if it is jumped? Then clean battery terminals and check battery.

2.) Check the battery to engine block ground, and the ground behind the engine to the firewall.

3.) Jump the big terminals on the starter relay next to the battery with a screwdriver - watch out for the sparks! If the engine cranks, the starter and power wiring is good. The starter relay is also known as a starter solenoid.

4.) Then pull the small push on connector (red wire) off the starter relay (Looks like it is stuck on a screw). Then jump between the screw and the terminal that is connected to the battery. If it starts, the relay is good and your problem is in the rest of the circuit.

5.) Remember to check the ignition switch, neutral safety switch on auto trans and the clutch safety switch on manual trans cars. If they are good, then you have wiring problems. See http://www.autozone.com/images/cds/gif/large/0900823d80195963.gif for 88-90 year cars .OR see http://www.autozone.com/images/cds/gif/large/0900823d80195964.gif for 91-93 year cars. See http://www.autozone.com/servlet/UiB..._us/0900823d/80/1d/db/3c/0900823d801ddb3c.jsp for 94-95 model cars.

6.) The starter may be hung, loosen up the bolts that hold it on, and give it a good whack with a big hammer. Tighten up the bolts and try again.

7.) If that doesn't work, use a jumper cable from the positive lead on the battery direct to the starter post where the big wire from the relay connects. If it cranks then, it is the power wire from the relay gone bad. This will be hard to do, since there isn't much room to do it.

8.) Pull the starter and take it to Autozone or Pep Boys and have them test it. Starter fails test, then replace it. If you got this far, the starter is probably bad.
 

1985 5.0

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Polkville, North Carolina
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#4
  • Aug 7, 2006
  • #4
I think the next thing I will try will be the clutch safety switch. the car can be started when it is jumped off and the battery is good and clean of corrosion.
 

jrichker

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1985 5.0 said:
I think the next thing I will try will be the clutch safety switch. the car can be started when it is jumped off and the battery is good and clean of corrosion.
Click to expand...
If the engine will start OK when you jump it with another battery, either the battery in the car is bad or the battery terminals are corroded. Lead will form an oxide that is hard and dull looking that does not conduct electricty very well. Scrape the insides of the battery terminals with a knife or battery post cleaner until they are shiny all around.
 

billison

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Feb 27, 2006
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#6
  • Aug 7, 2006
  • #6
mine was doing this and i found one of the solinoid wires was off
 

1985 5.0

New Member
Apr 10, 2005
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0
Polkville, North Carolina
Aug 7, 2006
#7
  • Aug 7, 2006
  • #7
jrichker said:
If the engine will start OK when you jump it with another battery, either the battery in the car is bad or the battery terminals are corroded. Lead will form an oxide that is hard and dull looking that does not conduct electricty very well. Scrape the insides of the battery terminals with a knife or battery post cleaner until they are shiny all around.
Click to expand...

oh i have misunderstood you. i meant that i can drop the clutch in second gear and the car will start. sorry
 
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