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Ford Bronco Problems

231 messages,  Last post on Nov 21, 2009 at 2:24 AM

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#86 of 231
94 bronco by madmastiff
Dec 07, 2007 (11:25 pm)
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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
#87 of 231
Re: abs lite still on [bavington] by miesk5
Dec 09, 2007 (5:06 am)
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Replying to: bavington (Dec 03, 2007 5:41 pm)

yo,
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!
#88 of 231
Re: 94 bronco [madmastiff] by miesk5
Dec 09, 2007 (5:10 am)
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Replying to: madmastiff (Dec 07, 2007 11:25 pm)

yo madmastiff,
 
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
#89 of 231
Re: 95 bronco 5.0 302 [scooter692002] by miesk5
Dec 09, 2007 (5:31 am)
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Replying to: scooter692002 (Dec 03, 2007 2:59 pm)

Ck with folks you bought the long Block from to see if the cam is for rollers.
 
Most likely; Could be just a head gasket which has blown between those two cylinders, sticky valve(s) etc.
or worse; Another possibility is that the camshaft is broken in an area that operates valves for two adjacent cylinders. not likely..
  
read more here Compression Testing, Stem
Source: by tradervar.com http://www.tradervar.com/Stem%20Compression%20Tester.pdf
A leakdown will determine whats going on in those cylinders,look inside the radiator for any "brown foam" to see if the head gasket is blown.Aside from that the leakdown will tell you all thats going on
 
GL!
#90 of 231
Re: abs lite still on [miesk5] by bavington
Dec 09, 2007 (1:54 pm)
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Replying to: miesk5 (Dec 09, 2007 5:06 am)

Is there more than one relay for the ABS system?
#91 of 231
Re: 94 bronco [miesk5] by madmastiff
Dec 09, 2007 (11:48 pm)
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Replying to: miesk5 (Dec 09, 2007 5:10 am)

thanks for the info miesk5
electrics all check on nov. 1 as i got a new battery that day. have not tried the check the codes
heading to AZ tomorrow morning.
#92 of 231
Re: abs lite still on [bavington] by miesk5
Dec 11, 2007 (8:08 am)
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Replying to: bavington (Dec 09, 2007 1:54 pm)

No bav, just that one relay; ck the socket for corrosion before you do anythaNG
#93 of 231
Re: 94 bronco [madmastiff] by miesk5
Dec 11, 2007 (8:08 am)
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Replying to: madmastiff (Dec 09, 2007 11:48 pm)

OK MADm!
gl!
#94 of 231
Re: abs lite still on [miesk5] by bavington
Dec 11, 2007 (3:44 pm)
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Replying to: miesk5 (Dec 11, 2007 8:08 am)

ok-thanks.I wish I had waited and not replaced the rear sensor.Could have saved $20.Something I did notice before the ABS light came on was that sometimes when I lightly touched the brake pedal it felt like it would stick and pop out.Not sure if that tells you anything.Live and learn
#95 of 231
Re: abs lite still on [bavington] by miesk5
Dec 12, 2007 (4:29 am)
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Replying to: bavington (Dec 11, 2007 3:44 pm)

yo BAV!
Doubt that it is the brake pedal, Look that AutoZone Link I posted and go thru the pin point tests for that Code. In reply mode here, I can't view what I posted.
GL!

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