89 ranger with 2.3l missing or timing? - Ranger-Forums - The Ultimate Ford Ranger Resource

SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

LinkBack Thread Tools Search this Thread
Old 05-03-2015
Thread Starter
Join Date: May 2015
Location: marhall nc
Posts: 16
89 ranger with 2.3l missing or timing?

Working on a 1989 ford with a 2.3L 5 Speed. 8 plugs. The truck has a miss on the exhaust side. The coil have been changed new ignition system the ecu has been replaced. I did how ever check a few other thing am getting 12 volts to the center wire on the exhaust coil pack, i also replaced the coil with one that i knew that work nothing changed. There no change how the truck runs if you unplug the exhaust coil pack other then the ses light comes on when the coil is unplugged if you unplug the coil for the intake side the truck does not run. Then when i took it to drive it a little way some time it would run other time it would fall on it face and do nothing.
Reply With Quote
Old 05-03-2015
RF Veteran
iTrader: (1)
Join Date: Jan 2014
Location: Vancouver, BC
Posts: 7,580
Spark, at the right time
Fuel, in the right mix with air
Compression, above 100psi

Those are the big 3 a gas engine needs to ignite a cylinder.

Compression can't really be intermittent, so it is often best to check it then it can be taken off the table.
2.3l's have been know to have rockers wear down so valves don't open all the way, also lean running can cause "tulipped" valve, so low compression with either.
As RPMs increase compression does too, so cylinder can start firing at that time.

Spark can be test with, old timing light or spark tester.

Fuel can be checked by disabling spark, unplug coils, and cranking engine over, then pull spark plug and see if it is fuel on it.
Can do this test when testing compression as well, check and wipe off end of tester after testing each cylinder.

Compression test must be done with 1 spark plug removed from each cylinder, so crank shaft speed is faster.

FYI on the 2.3l or 2.5l, only the exhaust side spark plugs/coil are used when starting, intake side don't start until engine is running, i.e. RPMs above 600
Reply With Quote
Old 05-03-2015
Thread Starter
Join Date: May 2015
Location: marhall nc
Posts: 16
I told you wrong the exhaust side is working it's the intake side that is not firing. thanks for the info maybe I can get the truck running
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Timing Belt or Timing Chain? Phatmatt2009 General Ford Ranger Discussion 5 02-15-2017 12:14 PM
1997 Ranger XLT with missing front end BlackRanger04 Ranger Based Vehicles 9 09-01-2010 08:44 PM
timing chain or timing belt? da lone ranger 2.3L & 2.5L I4 Tech 2 07-26-2008 01:10 AM
timing belt or timing chain da lone ranger 2.3L & 2.5L I4 Tech 2 07-18-2008 11:03 PM
2002 Ranger Missing Badly All Of A Sudden hz36t5 General Technical & Electrical 18 01-09-2008 06:44 AM

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

All times are GMT -6. The time now is 06:07 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.