1993 LX 5.0 dies after ignition parts replacement
- Thread starter Warhorse85
- Start date
This would not be satisfactory to me. If it's already overheated even once, then it is no longer reliable.
Adding paste to an already burned up unit won't make it better.
Try a new TFI with paste.
So I checked the ignition switch and it seems fine. I cranked it and it tried to start but wouldn't. Sometimes it would start if I feathered the gas pedal though but not run long. It would sputter out
TFI TFI TFI. I've had multiple brand new ones fail right out of the box from various brands (Motorcraft, Standard, etc..). I found 2 brands that consistently work nowadays... Autozone part #F121 and Carquest part # CBA1188. Yes, you need thermal paste. Both of those part #'s should come with little packet of it to use. I can 99% guarantee you it's the TFI and possibly the PIP (if the TFI took the PIP with it). @Warhorse85
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It only gets spark when the SPOUT connector is removed but still won't start with either the old one or the new one
the new one you installed without thermal paste ? That one is fried from the heat
Unfortunately those two "brands" don't make parts either. They just re-brand someone elses part with their number on it. In all likelihood they are the same part - same third party manufacturer.
The carquest is made in USA by WVE. The autozone one used to be made by them too but not anymore. It's now made by WAI in China. Standard is made in USA but I cannot get a working one from them.
Mindseye007
5 Year Member
TFI Module 100% cooked , get a new one from Rockauto.
Motorcraft https://www.rockauto.com/en/moreinfo.php?pk=5434788&cc=1134010&pt=7172&jsn=17
STANDARD MOTOR PRODUCTS LX223 https://www.rockauto.com/en/moreinfo.php?pk=49708&cc=1134010&pt=7172&jsn=932
check your current TFI Module, by buying this off eBay https://www.ebay.ca/itm/26737177741...pid=5335821607&customid=&toolid=10001&mkevt=1 and don't for get to buy a 9 Volt Battery.
You can relocate your new TFI module with this https://www.mccullyracingmotors.com/ best one out there.
Get some extra Arctic Silver 5 thermal paste https://www.ebay.ca/itm/16642480345...pid=5335821607&customid=&toolid=10001&mkevt=1
after it's all installed, your stang will fire right up…
Also, if you ever need your ECU repaired, this place is awesome and the best place to get it fixed at.
Ford Mustang 5.0 A9L A9P C3W A3M X3Z ECU Engine Computer Repair ServicePlease fill out the R&R form here once you've placed your order.Easy repair process1. Purchase repair service (this way helps us keep track of what's coming in for repair)2. Include order number with your computer and mail to...
Just picked up a new TFI and ignition switch. I'm also going to tighten the terminals on the ignition switch plug
Replaced TFI, charged battery, tightened terminals on ignition switch connector. Still no start
Mindseye007
5 Year Member
Buy the TFI checker of eBay and it will tell you if they are cooked or not it comes with instructions it's simple to use and dont forget you need a 9volt battery. Does it turn over? are you getting spark ? Fuel pressure ? Check the coil, I use the screamin diamon coil it's sweet.
Could be the pip in the distributor check the cap and rotor too.. you can find a nice oem distributor on ebay neo mustang sells them painted and all. I had the same problem as you and a new TFI fixed mine got the tfi from rockauto, standard motor products lx223.
Has fuel pressure, new tfi, coil, maf, egr, cap rotor, plugs and wires. Crank/no start
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