Not getting any spark - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

Join Mustang Evolution Today

Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 01-01-2008, 04:36 PM   #1
Registered User
Newbie
 
Join Date: Jan 2008
Posts: 1
92gtny is unknown around these parts
Not getting any spark

Hello i am new here, looking for help.
car is a 1992 lx [2.3]
Swapped in an 88 302 [efi setup]
I got the car not running since no one could figure it out. I got it getting fuel but no spark. Replaced coil and dizzy cap. the coil is making spark but no spark at the plugs?? i dont get it. please help
__________________

__________________
92gtny is offline   Reply With Quote
Old 01-01-2008, 08:50 PM   #2
Legacy Member
Legacy
 
MonteCitan's Avatar
 
Join Date: Aug 2004
Posts: 2,507
MonteCitan is unknown around these parts
Send a message via AIM to MonteCitan
Re: Not getting any spark

how do you know no spark at plugs? have you tried arcing the plug end to the header?

How are the gaps on the spark plugs?

The coil could have weak signal...
__________________

__________________
2012 IS F Blue IS F Sport
2006 Mustang V6 wannabe
MonteCitan is offline   Reply With Quote
Old 01-02-2008, 08:35 AM   #3
Legacy Member
Legacy
 
Herbstang's Avatar
 
Join Date: Jan 2005
Posts: 2,931
Herbstang is unknown around these parts
Re: Not getting any spark

Might try this (make sure your not 180 out)

To avoid getting lost in all the wiring issues, disconnect ALL wires from the (-) terminal of the coil, then connect a separate "test" wire directly from the hot (negative, on your car) to the (-) terminal of the coil, and make sure the (+) terminal on the coil is the one that is connected to the side of the distributor, and crank the engine for a spark test now. You have now eliminated any possible wiring errors, ignition switch problems, ballast resistor problems and the like.

If you STILL get no spark from the coil, loosen the test wire at the coil end, and tap the wire on the coil (-) post momentarily (it's only 6 volts, you can't get a shock), but you should see a spark at the end of the wire when you do this.

Two possible results can occur here: If you DO see the spark at the end of the test wire, the points are either closed (which may be OK) or shorted (which ain't!). On the other hand, if you do NOT see a spark at the end of the test wire, the points are either open (which also may be OK) or the distributor ground is not making contact (which ain't either !)

Now we have to sort this out: If you see the spark at the end of the wire in the above test, next remove the distributor cap and watch the points while you bump the engine over a bit at a time until you get to a place where both sets of points are open (or stick a piece of paper between each set of points.)

Now we KNOW the points are not what is shorting the (+) terminal of the coil to ground. Repeat the wire tapping test, if you still get a spark from the test wire when you tap it on the coil (-) terminal, we know there is a short inside the distributor.

If you get to this conclusion, you'll have to do some detective work here. Inspect the wire that connects the side terminal on the distributor, through the side wall of the distributor, and to the points connections. Make sure that wire is not frayed, or touching anything metal. If there is any suspicion, disconnect it and see if the short (the spark in the above test) disappears. It is also possible that the condenser INSIDE the distributor has failed, and is causing the short.

Back to the first test: If you did NOT see any spark when you tapped the test wire on the coil (-) terminal, take the distributor cap off and watch the points while you bump the engine over a bit at a time. Stop when you can see that at least one set of points is in the closed (making contact) position. Now try the first test again - see if the wire makes a spark at contact on the coil (-) terminal. If it does, the points are OK, and the grounding is OK, so you can relax about the engine ground.

This is a bit off the subject, but the grounding wire from the engine to the body is there to give better grounding to the body - the battery (+) should be connected directly to the engine block or head, and because the starter cranks OK, we know that connection is good. The wire to the body is a good thing, but it does not affect the problem we are hunting down here.
__________________

Mods-K&N CAI , True Dual Flowmaster 40, BBK Ceramic Shorties, 3.73 , 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/Dyno Tune

Quote:
"Some people are like Slinkies; useless, but fun to push down the stairs."
Herbstang is offline   Reply With Quote
Old 01-02-2008, 08:58 AM   #4
Registered Member
Regular
 
rocknbronco's Avatar
 
Join Date: Jul 2006
Posts: 614
rocknbronco is unknown around these parts
Re: Not getting any spark

Get a ti ming light sometimes a 302 or 351 will jump time.....
__________________
rocknbronco is offline   Reply With Quote
Old 01-03-2008, 09:30 PM   #5
Legacy Member
Legacy
 
MonteCitan's Avatar
 
Join Date: Aug 2004
Posts: 2,507
MonteCitan is unknown around these parts
Send a message via AIM to MonteCitan
Re: Not getting any spark

Quote:
Originally Posted by rocknbronco View Post
Get a ti ming light sometimes a 302 or 351 will jump time.....

my 89 did that (that's when I put the e303 in ) but it still had spark...
__________________
2012 IS F Blue IS F Sport
2006 Mustang V6 wannabe
MonteCitan is offline   Reply With Quote
Old 01-05-2008, 05:15 AM   #6
Registered Member
Regular
 
rocknbronco's Avatar
 
Join Date: Jul 2006
Posts: 614
rocknbronco is unknown around these parts
Re: Not getting any spark

Might be a bad distributor.
__________________
rocknbronco is offline   Reply With Quote
Old 01-12-2008, 04:51 PM   #7
Registered Member
Regular
 
silverstangboy's Avatar
 
Join Date: Jan 2005
Posts: 583
silverstangboy is unknown around these parts
Re: Not getting any spark

replace your distributer... same thing has happened to me with more than one car, replacing the TFI alone wont fix it. trust me.
__________________

__________________


93 mustang notch
~450hp 331 stroker - Sold
silverstangboy is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Spark Plugs drkchocolate07 Pre-2005 V6 Mustang 9 05-10-2009 01:29 PM
NO SPARK KEYSVILLEDAVE 1979-1995 Mustang GT 3 01-09-2009 04:07 PM
Which spark plugs should I use??? koch_A_tyler 1996-2004 Mustang GT 5 03-18-2008 06:36 AM
Spark Plugs megax29 Pre-2005 V6 Mustang 13 03-25-2006 08:51 AM
Spark Plugs Stang01 Pre-2005 V6 Mustang 19 07-18-2003 04:55 PM

» Like Us On Facebook


Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


06:22 PM


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.