1986 Ford Bronco will not start occasionally

Tiny
JOHNNY13
  • MEMBER
  • 1986 FORD BRONCO
1986 Ford Bronco V8 Four Wheel Drive Automatic

my 86 ford bronco will ocassionally not start. It will turn over just fine but it wont start. This seems to happen when it gets warm. After letting it sit for a few hours it will start just fine.
Do you
have the same problem?
Yes
No
Sunday, April 26th, 2009 AT 5:04 PM

2 Replies

Tiny
RASMATAZ
  • MEMBER
It will turn over just fine but it wont start

When it does this don't wait do below to determine if its fuel or spark problem and comeback with some results.

Get a starting fluid/ether/better off gas in a spray bottle and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, distributor pick-up coil, ignition control module, ECM, Ignitor cam and crank sensors- Note: If it doesn't apply disregard it

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time/broken or jumped timing belt/chain
Was this
answer
helpful?
Yes
No
Sunday, April 26th, 2009 AT 5:09 PM
Tiny
JOHNNY13
  • MEMBER
Used ether, didnt start. Checked for spark to the distributor and from the distributor to the spark plugs and there was a spark. Today I actually pulled the fuel injectors, cleaned and tested them and they worked fine. Havent checked the valve and ignition timing yet. This is the ohly vehicle I have so I have to do all my work on the weekends when I make time, so sorry for the delay.
Was this
answer
helpful?
Yes
No
Sunday, May 3rd, 2009 AT 7:43 PM

Please login or register to post a reply.

Recommended Guides