Mechanical Problems & Technical Chat If you've got a problem you just can't figure out, a noise you can't diagnose, or a check engine light that won't go away, ask about it here!

Gremlin, wont start

Thread Tools
 
Search this Thread
 
  #1  
Old 10-30-2012, 07:42 AM
David_S's Avatar
HCF Member
Thread Starter
Join Date: Oct 2012
Location: Dallas, TX
Posts: 54
Default Gremlin, wont start

When I turn on the key the turn signal indicators and the brights indicator come on. When this happens the engine won't get any spark.
 
  #2  
Old 10-30-2012, 07:57 AM
mk378's Avatar
Recognized HCF Member
Join Date: Jun 2007
Posts: 10,023
Default

It is better to keep all this stuff related to the same problem of not starting in one thread.

Strange interaction between seemingly unrelated electrical stuff is almost always a bad ground. Turn key on and measure with a voltmeter to confirm the car body and the engine block are both near zero volts relative to the battery (-) post. Check that the ECU ground wires on the thermostat housing are secure and also zero volts to battery (-). The cluster has a ground somewhere behind the dash but I'm not sure if losing it would cause no spark.

You also said the previous owner had added some new wires?
 
  #3  
Old 10-30-2012, 10:22 AM
David_S's Avatar
HCF Member
Thread Starter
Join Date: Oct 2012
Location: Dallas, TX
Posts: 54
Default

They had bypassed the wiring harness for the starter wire. Hence when I hooked up the wiring harness correctly it wouldn't start.

I just wired all the ground wires to the starter, block and where the harness connects to the thermo housing.

When I turn on the headlights I can hear the fuel pump engage and the dash lights come on for the seatbelt door etc....

I think that this is some kind of cross wiring between the lighting system and the ignition system.
 
  #4  
Old 10-30-2012, 12:41 PM
mk378's Avatar
Recognized HCF Member
Join Date: Jun 2007
Posts: 10,023
Default

It sounds like you don't have the body grounded. The big wire from battery (-) should bolt to the body first then go on to the transmission / engine assembly.
 
  #5  
Old 10-31-2012, 09:21 AM
David_S's Avatar
HCF Member
Thread Starter
Join Date: Oct 2012
Location: Dallas, TX
Posts: 54
Default

Thanks man thats what it turned out to be. Button down a few more items and it will be my daily driver from then on.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BombSquad91
Mechanical Problems & Technical Chat
3
01-21-2013 05:01 PM
fuelsmech29
Mechanical Problems & Technical Chat
9
11-14-2010 10:04 PM
Locke
Mechanical Problems & Technical Chat
3
09-10-2010 08:41 AM
bmelloh
Mechanical Problems & Technical Chat
5
05-16-2009 08:01 PM
ccwhit7
Mechanical Problems & Technical Chat
5
10-31-2008 03:43 AM



Quick Reply: Gremlin, wont start



All times are GMT -8. The time now is 10:23 PM.