Question about Cars & Trucks

1 Answer

1988 Ford F350 460,fuel injected, Wont start,,, Coil only sends spark once per revolution of the rotor

1988 ford f350 460, fuel injected. was running great then suddenly as I left a stop light it was missing. But has the rpm's went above 1200 it leveled out and ran smooth, no miss. Over the next mile with 3 more stop and goes it got worse until it finally died. Towed it 3 miles home, it fired up and ran great for a 10 seconds then started missing until rmps was above 1200 again and like before it got worse and worse until it died and wouldnt start. (((( As strange as it sound I discover it only gets spark to the #4 plug. I changed the ignition mod, plugs, plug wires, dist. cap, rotor and coil.)))). I have also noted that the tach is jumping while the engine is cranked (which has never happend before),, and it was jumping (badly) while the engine was missing before it would die.. Any thoughts?? Thanks in advance

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 2,415 Answers

Hello Donn,

UN-fortunately 1988 is WELL before the OBD
(on board diagnostic)... DIAGNOSTIC TROUBLE
Codes (DTC) got standardized...

So DAYS can be wasted looking for commonality...
(troubles).

Rather than assuming your spark, timing, fuel, ECU...
Oxygen Sensors. INJECTORS are all askew...

I would suggest that if you SATURATED YOUR
HEADER BOLTS with LIQUID WRENCH...

and opened you EXHAUST ahead of your catalytic
converters... ahead of your mufflers... you engine would run...

Obviously DANGEROUS to operate in that condition... at
least you would know what had to be REPLACED before
you can operate your vehicle SAFELY.

If you decide the job is a bit too much... at least
check out your PURCHASE cost of a replacement
CAT and/or MUFFLER...

Try rockauto
http://www.rockauto.com/en/catalog/ford,1988,f-350,7.5l+460cid+v8,1126437,exhaust+&+emission

1988 FORD 350 7 5L 460cid V8 Catalytic Converter RockAuto

1988 FORD 350 7 5L 460cid V8 Muffler RockAuto

Posted on Mar 16, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 16 Answers

SOURCE: s10 pickup after warming up truck starts missing

You might have computer problems.

Does the check engine light come on when it starts to miss?


Posted on Nov 30, 2008

  • 65 Answers

SOURCE: ENGINE WONT TURN OVER

sounds like the timing belt it has a interference engine so if the timing belt broke you could have bent rods and cracked pistons or worse. good luck

Posted on Dec 15, 2008

  • 247 Answers

SOURCE: 98 ford windstar died during test drive after spark plug change

i would think the coil is bad and i would replace it.

Posted on Dec 17, 2008

txkjun
  • 409 Answers

SOURCE: Honda Misses.

Pin point the dead hole and check that injector.

Posted on Dec 24, 2008

  • 491 Answers

SOURCE: 1990 K5 Blazer DIED(Electrical?)?

There may be no injector pulse if the computor does not see a RPM signal.
There will be no spark if the ignition module does not see a dist pulse from the dist pickup.......a RPM signal.
Because you do not have both ......I would suggest to check/change the dist pick up.
Follow the wires from the ignition module inside the dist to the pickup which is also inside the dist.
If it is just a bad dist pickup....keep all your old parts as good spares.
Also...is the dist turning? to provide a RPM signal?
You will have to remove the dist to change the pick-up.....mark your timing locations......"rotor position" and "dist body location"before removal.
A quick test before installing the "repaired dist" .....plug it in the the truck wiring and turn on the key....DO NOT CRANK THE ENGINE OR YOU WILL LOSE YOUR DIST ROTOR CORRECT POSITION......as you spin the dist by hand .....the injectors should spray.

Posted on Aug 23, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1999 ford f350 starts but wont go over 1rpm


HIGH PRESSUE FUEL REGULATOR IS BAD.. FUEL PUMP.. WONT SEND ENOUGH FUEL.. ALSO POSSIBLE AIR IN SYSTEM..CHECK FUSES ALSO.. AND WIRING..

Mar 07, 2014 | 1988 Ford F 250

1 Answer

Wont start


Is it not getting spark, or not getting fuel thru the injectors ?
If its no spark, its usually the ignition module or the pickup in the distributor. You might also check for power at the coil from the EEC relay.

Aug 09, 2013 | 1995 Ford F350

2 Answers

MY 2004 Ford Ranger engine turns over but wont start.


Are you getting fire?have you checked your fuel filter and coil pack

Dec 08, 2012 | 2004 Ford Ranger

1 Answer

2.3 ford will not start


What year? Carb or fuel injected? Fuel pump?
Td

Oct 10, 2012 | Cars & Trucks

1 Answer

I have a 1987 ford bronco and it wont start. It turns over like it wants to start but wont. I thought it might have been the carburator but my friend checked and its not, so now I think its flooded. what...


Check to see if the spark plugs are getting voltage. Check your distributor and rotor and make sure the distributor cap is not cracked, and the rotor is making contact. You can use an inductive timing light or use a spark plug connected to one of the plug wires to and ground the base of the plug using a jumper cable (do not touch the plug when cranking). When cranking you should see a spark. If you do not it could be the coil or electronic ignition. If you see sparks then you need to check the fuel pump pressure.

Nov 16, 2010 | 1987 Ford Bronco

2 Answers

1988 Ford F350 engine turns but wont start


I had a similar problem. My truck would start fine until it sat after running a while and I shut it off for ten minutes or so.The engine heat heat would rise to the deisel fuel injection pump and the truck would whirl over when I tried to start it, but it would not fire. There is a spring in the fuel shutoff on the injection pump that expands with heat and, as it gets older, sticks so that the solenoid doesn't open. I found that a small amount of cool water poured on the pump would cool it enough to start.

May 15, 2009 | 1994 Ford F350 Crew Cab

1 Answer

My 1988 ford f150 wont start


fuel pressure regulator!!
and when is the last time you had a complete tune up?

Apr 19, 2009 | Ford F-150 Cars & Trucks

1 Answer

I have a 1988 Larriot F-150 5 speed 5.0 it will turn over but wont start


You first have to see if you have a fuel or spark problem. The easy way is to spary starter fluid in throttle and see if it runs for a few seconds. If it does you have a fuel problem, possible fuel pump not running. If it does not you have a spark problem which can be a bad module, coil or rotor.

Dec 21, 2008 | 1988 Ford F 150

1 Answer

88 f 15- wont start have change coil, rotor, cap, plugs, fuel pumps, computer been working to get truck going 4 days no luck.


You need to see if you have fuel pressure at the fuel rail. Do you have any spark at coil and if you do is there spark at plug wire? If no spark at either check the ignition module and pickup coil.

Dec 11, 2008 | 1988 Ford F 150

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

145 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75066 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...