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66-96 Ford Broncos - Early & Full Size

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  1. Last week
  2. diymirage

    C6 transmission not engaging

    thanks miesk i checked with the guy that rebuild the tranny last year, he said merc/dexron so i added about 3 quarts of that and all seems well ill let het settle for a while and check again next time i take her out as far as the site goes, all is running smooth here
  3. miesk5

    C6 transmission not engaging

    Yo, I got hung up in a 5 minute lag here. Any issues on your end diy?
  4. Earlier
  5. BroncoJoe19

    89 4 Door

    Man, that is a great looking truck! You'll be certain to turn heads at any car/truck show you take her to. Most importantly, have fun! Joe
  6. diymirage

    C6 transmission not engaging

    mhh, ill have to look into that later right now, im not registering any fluid on the dipstick, i guess it got sucked through the modulator into the engine ? what does this take, just off the shelf ATF?
  7. miesk5

    C6 transmission not engaging

    Yo diy, No. Manual shift valve inside transmission pan not connected or stuck. see https://www.ford-trucks.com/forums/1513688-how-to-remove-86-f150-c6-initial-shift-linkage-arm-from-shaft.html
  8. diymirage

    C6 transmission not engaging

    been out of town for a few days, but i got back yesterday and got the modulator installed, and the kickdown cable in place trying to get the kickdown set up, it looks like the shaft the the kickdown lever (on the transmission side) is mounted on spins ill have a closer look as soon as i get a chance, but that doesnt sound right, does it?
  9. This is a work in progress.  By me or possibly others.

  10. Blue1551

    Hello from Heber, AZ

    Hi Garry, l live in Young and drive threw Heber regularly. I have a 92 that I am building.
  11. miesk5

    OBD II CODE TEST

    C5 CHECK FOR VPWR TO IAC SOLENOID Key off. TP sensor disconnected. Disconnect Idle Air Control (IAC) solenoid. Key on, engine off. Measure voltage between the VPWR circuit at the IAC vehicle harness connector and the battery negative post. Key off. Was voltage greater than 10.5 volts? Yes No RECONNECT IAC solenoid. For Probe: GO to C13. All Others: GO to C6. VPWR is not present. RECONNECT TP sensor. For applications with EEC-V Power Relay inside CCRM (Mustang, Taurus/Sable and Thunderbird/Cougar): GO to Pinpoint Test Step X1. All others: GO to Pinpoint Test Step B1. C6 CHECK FOR SHORTED DPFE OR EGR VALVE POSITION SENSOR Key off. TP sensor disconnected. Disconnect DPFE sensor (EGR valve position sensor for 5.0L Explorer). Key on, engine off. Again measure voltage between VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE DPFE sensor (EGR valve position sensor for 5.0L Explorer). RECONNECT all components. RERUN Quick Test. For applications with a Fuel Tank Pressure (FTP) sensor (Taurus/Sable, Crown Victoria (ex. NG)/Grand Marquis, Town Car, Explorer, 4.2L F-Series and 4.6L F-Series): GO to C7. For applications with an A/C Pressure (ACP) sensor (Escort/Tracer, Continental and Mark VIII): GO to C8. For applications with Power Steering Pressure (PSP) sensor (2.0L Contour/Mystique): GO to C10. For applications with Injection Pressure (IP) sensor (NG Crown Victoria): GO to C11. All others: GO to C15. C7 CHECK FOR SHORTED FTP SENSOR Key off. TP and DPFE sensors disconnected. Disconnect FTP sensor. Again, measure voltage between the VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE the FTP sensor. RECONNECT all components. RERUN Quick Test. GO to C15. C8 CHECK FOR SHORTED ACP SENSOR Key off. TP and DPFE sensors disconnected. Disconnect ACP sensor. Key on, engine off. Again measure voltage between the VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE ACP sensor. RECONNECT all components. RERUN Quick Test. For Continental equipped with optional Traction Control (with TP-B sensor): GO to C9. All others: GO to C15. C9 CHECK FOR SHORTED TP-B SENSOR Key off. TP, DPFE and ACP sensors disconnected. Disconnect Throttle Position sensor B (TP-B). Key on, engine off. Again measure voltage between VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE TP-B sensor. RECONNECT all components. RERUN Quick Test. GO to C15. C10 CHECK FOR SHORTED PSP SENSOR Key off. TP and DPFE sensors disconnected. Disconnect PSP sensor. Again, measure voltage between the VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE the PSP sensor. RECONNECT all components. RERUN Quick Test. GO to C15. C11 CHECK FOR SHORTED IP SENSOR Key off. TP and DPFE sensors disconnected. Disconnect IP sensor. Again, measure voltage between the VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE the IP sensor. RECONNECT all components. RERUN Quick Test. GO to C15. C13 CHECK FOR SHORTED EGRP SENSOR Key off. TP sensor disconnected. Disconnect EGR Position (EGRP) sensor. Key on, engine off. Again, measure voltage between the VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE EGRP sensor. RECONNECT all components. RERUN Quick Test. GO to C14. C14 CHECK FOR SHORTED EGRB SENSOR Key off. TP and EGRP sensors disconnected. Disconnect EGR Boost (EGRB) sensor. Key on, engine off. Again, measure voltage between the VREF and SIG RTN circuits at the TP sensor vehicle harness connector. Key off. Was voltage between 4.0 and 6.0 volts? Yes No REPLACE EGRB sensor. RECONNECT all components. RERUN Quick Test. GO to C15. C15 CHECK VPWR TO PCM Key off. TP sensor disconnected. All other sensors wired to VREF disconnected from previous test steps (if necessary, refer to Sensors Connected ToVREF chart at the beginning of this pinpoint test). Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary. Install breakout box, leave PCM disconnected. Key on, engine off. Measure voltage between Test Pin 71 (VPWR) and Test Pin 77 (PWR GND) at the breakout box. Is voltage greater than 10.5 volts? Yes No GO to C16. SERVICE open VPWR circuit between PCM and splice to IAC solenoid. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. C16 CHECK VREF CIRCUIT FOR SHORT TO GROUND OR SIG RTN Key off. TP sensor disconnected. All other sensors wired to VREF disconnected. Breakout box installed, PCM disconnected. Disconnect Scan Tool from DLC. Measure resistance between Test Pin 90 (VREF) and Test Pins 51 or 103 (PWR GND) and 91 (SIG RTN) at the breakout box. Is each resistance greater than 10,000 ohms? Yes No REPLACE PCM. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. SERVICE VREF short to ground. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. C20 CHECK VREF CONTINUITY TO PCM Key off. Sensor where VREF check failed disconnected. Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary. Install breakout box, leave PCM disconnected. Measure resistance between Test Pin 90 (VREF) at the breakout box and the VREF circuit at the appropriate sensor vehicle harness connector. Is resistance less than 5.0 ohms? Yes No REPLACE PCM. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. SERVICE open VREF circuit. REFER to the EVTM schematic (if available), etc. and DTCs received to help pinpoint the location of the open. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. C25 CAN THE ECT PID BE ACCESSED? Key on, engine off. Attempt to access the ECT PID. Can the ECT PID be accessed? Yes No GO to C26. GO to C28. C26 ARE KOEO DTCs PRESENT FOR TWO OR MORE SENSORS/SWITCHES CONNECTED TO THE SIG RTN CIRCUIT? Are KOEO DTCs present for two or more sensors/switches connected to the SIG RTN circuit (refer to the EEC-V schematic in Description and Operation)? Yes No GO to C27. SERVICE open SIG RTN circuit to the sensor where the VREF check failed. RECONNECT all components. RERUN Quick Test. C27 CHECK SIG RTN CIRCUIT CONTINUITY TO PCM Key off. Scan Tool disconnected. Sensor where VREF check failed disconnected. Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary. Install breakout box, leave PCM disconnected. Measure resistance between the SIG RTN circuit at the appropriate sensor vehicle harness connector and Test Pin 91 (SIG RTN) at the breakout box. Is resistance less than 5.0 ohms? Yes No RECONNECT sensor. GO to C28. SERVICE open SIG RTN circuit. REFER to the EVTM schematic (if available), etc. and DTCs received to help pinpoint the location of the open. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. C28 CHECK PCM PWR GND CIRCUITS Key off. Disconnect Scan Tool from DLC. Breakout box installed, processor disconnected. Measure resistance between the battery negative post and Test Pins 51, 77 and 103 (PWR GND) at the breakout box. Is each resistance less than 5.0 ohms? Yes No GO to C29. SERVICE open circuit. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. C29 CHECK GROUND CIRCUITS IN PCM Key off. Scan Tool disconnected. Breakout box installed. Connect PCM to breakout box. Measure resistance between Test Pin 91 (SIG RTN) and Test Pins 51, 77 and 103 (PWR GND) at the breakout box. Is each resistance less than 5.0 ohms? Yes No SIG RTN/PWR GND circuits are OK in the harness and PCM. VERIFY results of previous test steps. RERUN Quick Test to verify DTC/symptom. REPLACE PCM. REMOVE breakout box. RECONNECT all components. RERUN Quick Test. C35 CHECK VREF FOR SHORT TO POWER Key off. Sensor where VREF check failed disconnected. Disconnect all other sensors connected to VREF (refer to Sensors Connected to VREF chart at beginning of this pinpoint test). Disconnect PCM. Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary. Leave PCM disconnected. Key on, engine off. Measure voltage between the VREF circuit at the TP sensor vehicle harness connector and the battery negative post. Is voltage less than 0.5 volts? Yes No REPLACE PCM. RECONNECT all components. RERUN Quick Test. SERVICE VREF short to power in harness. RECONNECT all components. RERUN Quick Test.
  12. miesk5

    C6 transmission not engaging

    Yo diy, Lokar should be able to give you tips.
  13. diymirage

    C6 transmission not engaging

    I'm not sure if my 87 should have a cable or a linkage, but since all of if is missing (except for the lever on the transmission) I figured putting in an aftermarket cable would be the easiest Specially since I'm also running an aftermarket intake and carb I got a lokar kit on my duster, and I'm running a Holley on that as well, so it should be pretty simple to get that hooked up
  14. miesk5

    C6 transmission not engaging

    Yo, I believe Ford went from cable to rods sometime 80s, so; Shift Linkage Parts Break-Out Diagram in an 88 with nomenclature http://web.archive.org/web/20051229052026/http://ylobronc.users.superford.org:80/documents/linkage3.gif by Dustin S (Dustball, Mellow Yellow, Mr. Laser Boy) Kick Down; "...I believe it's 1987+ that uses a cable and not a rod. Find a 1987+ Ford truck, van or Bronco that has a 302 or 351 with C6 and it'll have the cable you need..." Source: by Dustin S (Dustball, Mellow Yellow, Mr. Laser Boy) Shift Indicator Adjustment; "...There's a thin cable going from the shifter to the shift indicator. Once you take off the steering column cover, you'll see the small cable and the shift indicator component. The positioning is adjustable, just have to unscrew it and move it around till you get what you want..." Source: by Dustin S (Dustball, Mellow Yellow, Mr. Laser Boy) at FSB Shift Indicator Cable Repair in an 84; "...The plastic tubing that holds the gear indicator cable is broken in several places, starting at the point where it meets the indicator housing, which removes from the rest of the cluster with two screws. I ended up removing the cable entirely (which was broken as well) and replacing it with a thin piece of wire (from a CAT5 cable, actually) that is flexible but rigid enough to not bind. I still need to find a thin enough piece of plastic line to house it before I can reattach it to the shift arm, though..." Source: by jkorbes at FSB W
  15. diymirage

    C6 transmission not engaging

    thanks miesk, i tried picking one up local, but you know how that goes ended up ordering one online, should be here friday i also noticed there isnt a kickdown linkage on the truck so i ordered a lokar style cable aswell
  16. diymirage

    87-91 Front Bumper

    i would do some measuring and go to the junkyard, perhaps something from a blazer would fit? im running a air dam from a ranger on my duster and it fits pretty wel
  17. miesk5

    87-91 Front Bumper

    Yo, See https://www.carid.com/xenon/front-air-dam-unpainted-mpn-5361.html?singleid=453429214&url=3053990 Picture, info and price are copyrighted here, but was able to find an un-copyrighted pic; http://www.uniqueconceptsusa.com/catalog/index/220?conversion=Other+Companies&year=124&make=61&model=107&category=%2Fcatalog%2Findex%2F220 This is also shown @ https://www.bodykits.com/search.html?#!year%3D1987||make%3DFORD||model%3DBRONCO $433.99 ●● I have checked at: Call http://www.uniqueconceptsusa.com/catalog/index/220?conversion=Other+Companies&year=124&make=61&model=107&category=%2Fcatalog%2Findex%2F220 ⊙ http://www.stylintrucks.com/parts/3d_carbon_front_air_dam/1104000062_1921.aspx ⊙ At https://www.carid.com/universal-bumper-lips/?vehicle=2306 "Please Note: There are no vehicle specific body kits available for your 1988 Ford Bronco. Please view our selection of universal fit products below. Dominator Race® D2X Dirt Lower Aero Valance (0 Reviews)# 1119280148 Universal D2X Dirt Lower Aero Valance by Dominator Race®. Material: Durable hi-impact plastic. Quantity: 2 pieces. 3-1/2" wide-lowerd left side of nose. This product is made of high-quality materials to serve you for years to come.... High quality at an affordable price Expertly made from premium materials +2 $76.67 Dominator Race® Modified Valance Kit (0 Reviews)# 1119278148 Universal Modified Valance Kit by Dominator Race®. Material: Durable hi-impact plastic. Quantity: 3 pieces. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and... +2 $88.17 Dominator Race more details on - https://www.carid.com/universal-bumper-lips/?vehicle=2306 ..." ⊙ See this Go Industries Air Dam Valence, no dimensions https://rstparts-com.3dcartstores.com/mobile/87-91-Ford-Bronco-F-150-F-250-Air-Dam-Valance_p_55.html NPD, JEFFS, ETC, GOOD LUCK!
  18. miesk5

    C6 transmission not engaging

    Yo diy, Yes if fluid is in vacuum line, replace modulator. Yes, black striped modualtor.
  19. Skitter302

    87-91 Front Bumper

    Guys, the hard part about the 87-91 Trucks is that their is no aftermarket support for these like their is for the 92-97 Trucks. I'm looking for one of these or something close to. I'd like to have one for my '91 Bco and my Centurion had one of these when it was Born but when the paint and Body was done in 2012 or '13 the trim never made it back on. Any leads for finding something like this would be great. I'm almost to the point of making something out of sheet metal in our fab shop at work. Even then I don't think it would look as good as I want it to.
  20. diymirage

    C6 transmission not engaging

    Thanks I pulled the vacuum hose of and got 16-17 inches of vacuum and a small stream of fluid The only way for fluid to get up there is through the (broken) modulator, Correct? Is this the right replacement ? https://www.ebay.com/itm/FORD-C-6-TRANSMISSION-VACUUM-MODULATOR-BLACK-STRIPE-PUSH-IN-1973-UP/253596332726?hash=item3b0b84f2b6:g:8csAAOSw0vBUhNhF
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