Last post on Oct 22, 2013 at 4:55 PM
You are in the Ford Bronco
What is this discussion about?
#74 of 352 Re: 93 Bronco gas problem [gator07]
Nov 20, 2007 (12:18 pm)
Do you have a check engine Light on?
if so, post the Codes here for another reply.
DIY Self Test & Connector Location & pics, Bronco & Ford BEST PROCESS WITH DIAGRAMS!
Source: by Ryan M http://fordfuelinjection.com/?p=13
btw, A technician that is unfamiliar with the EEC Self-Test can mistakenly believe that continuous Memory codes are not present when they really are. He may run KOER Self-Test and get a pass code (111) and not realize that KOEO Self-Test must be run to receive any Continuous Memory codes. He may run KOEO Self-Test while counting MIL flashes and misinterpret the repeated hard fault pass code (111) to mean that Continuous Memory does not contain any codes. The engine temperature must be greater than 50°F (10°C) to pass the KOEO Self-Test and greater than 180°F (82°C) to pass the KOER Self-Test. To accomplish this, the engine should be at normal operating temperature
One possibility is; Ford TFI Ignition Module; this is a good guess... but do the Self Test for Codes.
Has that TFI Module been replaced Free under the recall? If you do not know, go to a Ford dealer and ask them to check using the VIN Code.
or, DIY by registering at Ford and look to see what recalls are outstanding, plus; Owner Guides (Manuals), Bronco/Ford truck & other Ford vehicles, free, download
Source: by Ford
Ford TFI Ignition Recall - the judge's order affected Fords manufactured between 1985 and 1995.
#75 of 352 Re: 93 Bronco gas problem [miesk5]
Nov 20, 2007 (12:40 pm)
The check engine light is not on. Only the ABS light is on and Ive replaced all those sensors. Now what does this mean????
#76 of 352 Re: 93 Bronco gas problem [gator07]
Nov 21, 2007 (7:56 am)
OK, do that self-test anyway; some codes may be stored w/out lighting the CEL
& do a self-test too here; The 4WABS connectors is red, & is under the hood right beside the engine test connector
4WABS System Component Locations, DTCs & Self Test & Connector Diagram; 93-96
Source: by Steve83
ABS Self test connector location; ABS (RABS II) Self Test , Diagnostic Connector Location, (title in article is wrong in article)
Source: by autorepair.about.com
#77 of 352 87 Bronco fuel pump problem
Nov 25, 2007 (2:42 pm)
i have a 87 full size Ford Bronco w/ the EFI 5.0 & O/D A/T. a few months ago i replaced the entire fuel system, tank, both pumps, filter, lines, & ERG system (rust problem). a few weeks ago the acuator rod in the column broke & since i couldn't find a new column (can't buy an acuator rod seperate) i installed an aftermarket ignition switch in dash. 2 weeks after i did the switch, the Bronco stalled at a light, i was idling & now the fuel pumps won't run. I've changed the ECM computer, the fuel pump relay (which if i jump the hot terminal to the out going, the pumps run) and all related fuses with no luck. Does anyone have any suggestions as to what may be keeping the fuel pumps from running?
#78 of 352 Re: 87 Bronco fuel pump problem [tjewertz]
Nov 26, 2007 (12:38 am)
hey, i have a 1994 thunderbird with the same problem the fuel pump is not running. changed the pump and checked the fuses. dont know where the pump relay is under the hood so i cant change that. anyone know where it is.
#79 of 352 Re: 87 Bronco fuel pump problem [tjewertz]
Nov 29, 2007 (1:21 pm)
Did you see any corrosion insde the FP Relay's socket?
Fuel Pump Relay Socket Corrosion Info; spray it down with contact cleaner; They absolutely HATE moisture; also ck the EFI Power Relay (should be next to the FP Relay) for operation & corrosion.
Next is the Inertia Fuel Cut-Off Switch (did you have a front end fender bender recently?
see this by Bronco Rob & Steve 83; http://fullsizebronco.com/forum/showthread.php?t=38216
Fuel Pump Relay Operational Sequence;
An inertia switch is used as a safety device in the fuel system. The inertia switch is located in the cab, generally under the dashboard on the right side. It is designed to open the fuel pump power circuit in the event of a collision. The switch is reset by pushing each of 2 buttons on the switch simultaneously (some models use switches with only one reset button). The inertia switch should not be reset until the fuel system has been inspected for damage or leaks.
When the ignition switch is ON, it turns the EEC power relay ON. The EEC power relay provides power to the powertrain control module (PCM) and the control side of the fuel pump relay. Power for the fuel pump(s) is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse, current flows through the fuel pump relay and inertia switch to the fuel pump(s). The fuel pump relay is controlled by the PCM.
When the ignition switch is turned ON, the fuel pump(s) will operate. If the ignition switch is not turned to the START position the PCM will shut the fuel pump(s) OFF after 1 second. The PCM will operate the fuel pump(s) operate the fuel pump(s) when the ignition switch is turn to START position to provide fuel while cranking.
After the engine starts, the PCM will continue to operate the fuel pump(s) unless the engine stops, drops below 120 rpm or the inertia switch is tripped.
The pickup in the distributor can throw a code when it is intermittent or not working..
One of many reasons you should check your codes
Have you done a code check? scan above for a DIY check that I have posted a few times here.
#80 of 352 Re: 87 Bronco fuel pump problem [joeflew1]
Nov 30, 2007 (6:16 am)
The FP relay is in da IRCM (formerly called da CCRM) and it is Mounted forward of the airbox The CCRM is not usually serviceable. But if you want to take a shot at it see Joe's info in Link below
Troubleshoot & Repair Your Malfunctioning Integrated Relay Control Module (IRCM) - by - J o e F r a z i e r NATO Member "Joe Cool
CCRM = Constant Control Relay Module , IRCM = Integrated Relay Control Module;. This relay contols the fan, fuel pump and A/C clutch if i'm not mistaken.
the fuel pump relay is tied into the IRCM on 94-95s; Since 1986, Ford has used, on several models, an Integrated Relay Control Module (IRCM) to operate the fuel pump, engine cooling fan and compressor clutch. During the early 1990’s, the
name was changed to Constant Control Relay Module (CCRM). The module has a 24-pin connector .
more Tech Info:
#81 of 352 ABS realy on 93' Bronco
Dec 02, 2007 (1:03 pm)
Wherr is the realy for the ABS.It is not marked and there is lots of realys under the hood.thanks
#82 of 352 Re: ABS realy on 93' Bronco [bavington]
Dec 03, 2007 (3:39 am)
Relay? Do you mean the Test Connector?
4WABS System Component Locations, DTCs & Self Test & Connector Diagram; 93-96; The 4WABS is located at the left-hand side (driver's side) of the engine compartment and marked ANTI-LOCK TEST - in my 96 it is near the hood hinge
Source: by Steve83 & miesk5
if Relay in;
Power Distribution Box Diagram in a 93
Source: by Troll Banned
Dec 03, 2007 (2:59 pm)
My 95 Bronco has a 5.0 302 engine in it. The bearings went bad so i bought a new long block. The new motor has hydralic lifters and cam my old motor has roller lifters and cam. Does that make any difference. The problem i am having with the new motor is 5 & 7 there is no compretion ? please and thank you for your help