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SUVs Ford Bronco Ford Bronco Problems
231 messages, Last post on Nov 21, 2009 at 2:24 AM
You are in the Ford Bronco Forum. Your Hosts are steve_ & tidester
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Replying to: tjewertz (Nov 25, 2007 2:42 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. GL! 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. |
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Replying to: joeflew1 (Nov 26, 2007 12:38 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 http://www.turbotbird.com/techinfo/New_IRCM/IRCM.html 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: http://www.dualcurve.com/5910-INST.pdf GL!!!!!!!!!!! |
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Wherr is the realy for the ABS.It is not marked and there is lots of realys under the hood.thanks
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Replying to: bavington (Dec 02, 2007 1:03 pm) 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 http://www.supermotors.net/vehicles/registry/media/290854
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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 
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Replying to: miesk5 (Dec 03, 2007 3:39 am) |
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I decided to replace the abs sensor($20) on the differential(guy at ford dealer said they go bad quite often) and it did not help.I had my doubts, but gave it a try.The code I got was a 17(possible relay, fuse, intermittent valve failures, opens or shorts to ground,high resistance valves etc) when I did the test prior.I tried swapping the horn relay with the ABS relay in the Distribution box which had the same numbers on them and that did not make the lite go out.I only started the vehicle in the garage which I felt should be enough to make the lite go out if the sensor or relay was the culprit.Are there any resistance readings on the wires comeing from the rear sensor that I should look for.One reads 5k and the other has very high res.Would like to fix the problem if possible.thanks
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vehicle starts and runs but will start to stall out from a stop. will often stall out when slowing down. did all summer. this winter i noted that the the battery gauge would start to go down first and then it would quit.the needle sits on the M but when it starts the stall outs it sits on the R. it did oscillate a couple of time at night and the gauge went up and down as the lights brightened and dimmed. one mechanic stated he thought it was the trottle sensor. but there has been a few times where after it has done the stop and i restart that it just cranked and cranked and cranked, with no restart, but as soon as i turn it completely off and hit the key it starts back up. ignition module? or stick of dynamite
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Replying to: bavington (Dec 03, 2007 5:41 pm) 17 Reference Voltage/Intermittent Valve Fault Possible Source(s): · 30 amp fuse open. · Intermittent connections to battery, main relay or ground.  driver's side radiator support and; · Main relay coil or contacts open. MIESK5 note; check relay contacts FOR corrosion pull relay again & ck ; also see Fig. 12 and on (in below LINK) for pin point tests of CODE 17 -· Open or short to ground in Circuit 532 (O/Y). · Open or short to ground in Circuit 599 (PK/LG). · Open or short to ground in Circuit 601 (LG/PK).MIESK5 note; FROM FUSE PANEL 30 amp fuse · Short to ground through anti-lock hydraulic control unit. · Intermittent valve failures. · High resistance valves. So, ck that Relay's contacts (not the relay's contacts, but the connector's contacts.) Here is Chilton's wiring diagram via autozone; you will see all above ckts and color codes in Fig. 8: 4-wheel ABS testing-1993-96 Bronco models http://www1.autozone.com/az/cds/en_us/0900823d/80/0a/a4/89/0900823d800aa489/repa- - irInfoPages.htm Also, R values for all in Fig. 10: Read thru all of that Chilton stuff; can save you $ btw, the rear ABS sensor on the diff would give Code 57. GL!
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Replying to: madmastiff (Dec 07, 2007 11:25 pm) Take it to get a free batty, alternator, etc check at AutoZone, Also Adv Auto may do it free too; possible battery, grounds, connectors, etc. Did you do the Self TEst for Codes? if not, get it done free at the AZ and post results here. GL
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