Search



Go Back   MustangForums.com > Ford Mustang Tech > 5.0L (1979-1995) Mustang
Sign in using an external account
Register Forgot Password?
Search

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Sponsored by Weld Racing


Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 07-17-2014, 10:45 PM   #1
JPJP
1st Gear Member
 
Join Date: Aug 2008
Vehicle: '86, FORD, MUSTANG GT
Posts: 108
Default PIP Going Bad?

Hello my '86 Mustang spent its first 60K in Phoenix (heat cycles). It now has about 96K on it.

Last week after heat soaking within the first few minutes of the next ride it died while idling at a light. After about 4 tries the car started right back up. The ambient was around 84° F.

I figured I would look into this apparent heat related issue later and drive in lower temp's.

Today the ambient was around 77° F. Going home from work I parked the car for about 1/2 hour to do an errand. The car would not start after multiple attempts. I could hear the fuel pump priming. The coil was cool to the touch. Seems/feels like no spark.

Walked home had dinner and came back about 1.5 hours later. Car started right back up.

Once home (short trip) I let car sit for a few minutes to heat soak and the car still started just fine. I put a blow dryer on the TFI module to get it good and hot to the touch. The car still started just fine.

I am planning on pulling the distributor and having the PIP on it checked at the local parts store. I will also have them check the TFI module.

Any thoughts or experiences with this apparent heat related no start? Will parts store be able to detect this intermittent problem?
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
JPJP is offline   Reply With Quote
Old 07-17-2014, 10:50 PM   #2
JPJP
1st Gear Member
 
Join Date: Aug 2008
Vehicle: '86, FORD, MUSTANG GT
Posts: 108
Default

Oh, forgot to mention the TFI is almost new (about 1.5 years old and 7K on it). It is a High Energy brand (LRS-F504) from Late Model Restoration.

Also the ignition coil is an Accel high output version.

Ignition components are all fresh including a tune up only about 3K ago.
JPJP is offline   Reply With Quote
Old 07-18-2014, 09:49 AM   #3
88 orangepeel notch
4th Gear Member
 
88 orangepeel notch's Avatar
 
Join Date: Mar 2010
Vehicle: 1988 notchback
Location: Wisconsin
Posts: 1,800
Default

I'd pull the TFI first, and have the parts store test it 3 times in a row. I'll bet it will fail on the third. A hair dryer won't get hot enough to fail the module. And I'd spend the extra money on a Motorcraft original replacement.
__________________
306 with all bolt ons, letter cam, ported E7's, T5 swap, full exhaust, 3:55's, 2" drop, and the worst paint you'll ever see or feel.
Dyno'd 300/316, 2745lbs-track scale
Best ET………12.4@108, 1.66 60ft on 8" ET Drags.
24 mpg (combined)
88 orangepeel notch is offline   Reply With Quote
Old 07-18-2014, 09:55 PM   #4
mjr46
Wal-mart lube/tire tech
 
mjr46's Avatar
 
Join Date: Jun 2007
Vehicle: 85 mustang
Location: West Virginia
Posts: 29,910
Default

Quote:
Originally Posted by JPJP View Post
Seems/feels like no spark.
you need not go any further until you verify a no spark condition.........."seems" is not valid in the world of troubleshooting..........when the prob occurs, verify such with an inline spark tester or used spark plug, if no spark, next check for inj pulse via a noid light, if you have no spark and no inj pulse, often that'll lead you right to the distributor where PIP is generated via the stator and aplified by the tfi, loss of Pip means cylinder Id does not occur thus ecm doesn't know when to fire inj's......verify!! don't guess
__________________

Quote:
Originally Posted by dudegirl View Post
Be polite and cordial when you talk to them, as pissing off the guys that can help you is seldom a good idea.
mjr46 is offline   Reply With Quote
Old 07-19-2014, 05:36 AM   #5
JPJP
1st Gear Member
 
Join Date: Aug 2008
Vehicle: '86, FORD, MUSTANG GT
Posts: 108
Default

The problem is it is intermittent.

Now that the weather is getting hotter it will probably be show up again. I will let you know what I find. Thank you.
JPJP is offline   Reply With Quote
Old 07-31-2014, 06:26 PM   #6
JPJP
1st Gear Member
 
Join Date: Aug 2008
Vehicle: '86, FORD, MUSTANG GT
Posts: 108
Default

UPDATE:

I replaced BOTH TFI module and the PIP module.

The TFI module tested bad and I replaced it with yes, a new MOTORCRAFT ignition module.

I replaced the PIP as preventative maintenance.

Cool link on replacing PIP:

http://www.stangnet.com/mustang-foru...pickup.823694/

Thanks for everybody's help!
JPJP is offline   Reply With Quote
Old 07-31-2014, 06:39 PM   #7
JPJP
1st Gear Member
 
Join Date: Aug 2008
Vehicle: '86, FORD, MUSTANG GT
Posts: 108
Default

Oh, forgot to mention the PIP module I picked up at Napa:

Echlin #MP711

Seems to be recommended by a lot of Ford guys.
JPJP is offline   Reply With Quote
Old 07-31-2014, 06:39 PM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

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 Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 04:46 AM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup