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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
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88 Posts
Discussion Starter · #1 ·
Hello,

So I recently got my 96 back from the mechanic in which they did the following replacements:

Front Ball Joints
Front Hub Bearings
U Joints
Axle Spindle seal inner and outer
Front crankshaft seal
Spicer axle shaft
Oil Pan and gasket
Both manifolds

After getting the truck back it didn't appear to have any problem on local roads. Once I took it onto the freeway with higher speeds it started to hesitate and flutter at about 50 MPH and just lacked any kind of power. It would accelerate slowly, and once it reach 70MPH roughly it was able to hold it with no problems, but if I had to accelerate it would pulse and stutter again.

No bangs, knocks, or anything like that. It just stutters.

I've called them back, and their going to look it over again, but have claimed that work they did would not cause this issue. Truck was working fine on the freeway before I dropped it off with them.

What should I be looking for, and direct them to double check?

Thanks!
 

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nothing they did should cause that, unless they pulled the engine to do the oil pan and in doing so pulled the intake to get it out.

Check fuel pressure and fuel flow, check fuel filters. Check for leaks around upper and lower intakes, or other vacuum leaks. Maybe they left a vacuum line off?
 

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Yo FuzzyBunny,
E4OD Transmission Control Indicator Light (TCIL) is a LED with an overdrive on/off switch at end of the Transmission shifter stalk; flashing OD light is an indication of a transmission related trouble code in the Powertrain Control Module (PCM).
Is it flashing while driving?

And have it tested for Diagnostic Trouble Codes for free at lo C al parts store, preferably local m0m and pop owned places.
Post any codes found here.
 

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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
Joined
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88 Posts
Discussion Starter · #4 ·
Yo FuzzyBunny,
E4OD Transmission Control Indicator Light (TCIL) is a LED with an overdrive on/off switch at end of the Transmission shifter stalk; flashing OD light is an indication of a transmission related trouble code in the Powertrain Control Module (PCM).
Is it flashing while driving?

And have it tested for Diagnostic Trouble Codes for free at lo C al parts store, preferably local m0m and pop owned places.
Post any codes found here.
OD light is not flashing. I'm going to have the mechanic double check their work, then if they don't find anything I'll get the codes and drop them here. Thanks!
 

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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
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88 Posts
Discussion Starter · #6 ·
@miesk5

Ran the Bronco up to my buddies parts store. The results are:

PO304 Cylinder 4 Misfire Detected
PO141 O2 Heater Circuit (Bank 1 Sensor 2)

At least it's confirmed pretty doubtful the mechanic did something. I'll start digging, but I'll happily take advise on what to start with.
 

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29,116 Posts
Yo Fuzzy,
PCM - MIL ON/DTCs From P0300 to P0308 Set
Article No. 97-8-6 04/14/97
MALFUNCTION INDICATOR LAMP (MIL) - DIAGNOSTIC TROUBLE CODES (DTCS) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, AND/OR P0308 STORED IN MEMORY

LAMP - MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATES - DIAGNOSTIC TROUBLE CODES (DTCS) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, AND/OR P0308 STORED IN MEMORY

FORD:
1996 CONTOUR, MUSTANG, TAURUS, THUNDERBIRD
1996-97 ESCORT
LINCOLN-MERCURY:
1996 COUGAR, MARK VIII; MYSTIQUE, SABLE
1996-97 TRACER
1997 CONTINENTAL

LIGHT TRUCK:
1996 BRONCO, ECONOLINE, EXPLORER, F-150-350 SERIES, RANGER, WINDSTAR
1997 F-150

This TSB article is being republished in its entirety to add the 1997 Continental to the vehicles affected.
CALIBRATION:
Refer to the Calibration Identification Charts for affected calibrations. The calibrations listed are current calibrations Past calibrations for the listed vehicles are also included.

WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.

ISSUE:
The Malfunction Indicator Lamp (MIL) may illuminate and Diagnostic Trouble Codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, and/or P0308 may be stored in memory with no driveability concerns present.

ACTION:
Reprogram the Powertrain Control Module (PCM) using the Service Bay Diagnostic System (SBDS) or New Generation Star (NGS) Tester. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1. For all MIL On concerns, conduct normal diagnostics and repair as required.

2. Check to verify vehicle does not have the latest calibration. If it does not, reprogram the PCM with the appropriate calibration, referring to the following Calibration Identification Chart using the April 1997 or later CD-ROM.

NOTE:
REGIONAL APPROVAL MUST BE OBTAINED WHEN IT IS NECESSARY TO REPLACE THE PCM.

NOTE:
THE FOLLOWING CHARTS LIST ALL CURRENT CALIBRATION REVISIONS. PAST CALIBRATIONS FOR THE VEHICLES LISTED ON THIS CHART ARE ALSO INCLUDED.
Obtain an Authorized Modification Decal (FPS 8262 - obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

NOTE:
DEALERS MUST REPROGRAM THE PCM USING SBDS OR NGS ALONG WITH THE LATEST Parts Block
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 96-26-5
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME 970806A Reprogram Powertrain 0.2 Hr. Control Module (PCM) - All Vehicles 970806B Replace Powertrain Control 0.3 Hr. Module (PCM) - 1996 Econoline, Explorer, Ranger, And 1997 Continental, F-150 4X2 970806C Replace Powertrain Control 0.4 Hr. Module (PCM) - 1996 Contour/Mystique, Thunderbird/Cougar 3.8L, Mustang,Escort/Tracer, Taurus/Sable 3.0L MFI/FFV, And Mark VIII 970806D Replace Powertrain Control 0.5 Hr. Module (PCM) - 1996 Taurus/Sable 3.0L DOHC, Thunderbird/Cougar 4.6L, And 1997 Escort/Tracer, F-150 4X4 970806E Replace Powertrain Control 0.6 Hr. Module (PCM) -1996 Taurus 3.4L SHO, Bronco, F-150-350 (Except 7.3L DIT), And Windstar 970806F Replace Powertrain Control 0.7 Hr. Module (PCM) - 1996 F-250-350 7.3L DIT

DEALER CODING
CONDITION BASIC PART NO. CODE 12A650 08
OASIS CODES: 206000, 698298
RELATED INFORMATION
●□●

DRIVEABILITY - HO2S (HEATED OXYGEN SENSOR), CATALYST, AND FUEL SYSTEM MONITORS - SERVICE TIPS - OBD II VEHICLES ONLY - 96 Bronco, TSB 01-9-7
Source: by Ford via Chilton @ TSB 01-9-7 HO2S Service Tips
Excerpts:
Multiple DTCs (with the same meaning): When multiple (paired) DTCs with the same are set for multiple sensors, it is unlikely that replacing both HO2S sensors will resolve the concern. In most cases, there will be another issue that is causing the codes Examples of multiple (paired) DTCs:
(P0135/P0155),
(P0141/P0161),
(P1132/P1152).
(P1131/P1151)vvehicle comes in with a MIL On concern. KOEO self test reveals DTCs P0135 and P0155 (HTR-11a nd HTR-21 circuit malfunction), with no other DTCs present. The most likely cause of these DTCs would be something in the heater power circuit that both of these HO2S sensors have in common (Example: open or shorted heater circuit wiring or splice). It is highly unlikely that multiple sensors would fail at the same time. When multiple DTCs of this nature are encountered, reviewing the appropriate wiring diagram(s) can help to isolate possible areas of concern. When reviewing the help to isolate possible areas of concern, as wiring diagram, look for things that the affected sensors have in common.
In this example, the most likely cause of DTCs P0135 and P0155 (with no other DTCs present) would be a concern with Splice “B” (refer to Figure 2)
READ MORE on PAGE 13... (Fuse shown is maxi fuse #5 in engine compartment Power Distribution Box)
The HO2S Monitor DTCs can be categorized as follows:
HO2S signal circuit malfunction - P0131, P0136, P0151, P0156
HO2S slow response rate - P0133, P0153
HO2S heater circuit malfunction - P0135, P0141, P0155, P0161
Downstream HO2S not running in on-demand self test - P1127
Swapped HO2S connectors - P1128 and P1129
HO2S lack of switching - P1130, P1131, P1132, P1150, P1151, P1152
HO2S lack of switching (sensor indicates lean) - P1137
HO2S lack of switching (sensor indicates rich) - P1138

DTC Code: P0141
Description: Oxygen Sensor Heater Circuit (Bank 1, Sensor 2)
Probable Causes:
Sensor or solenoid faulty
Connector terminal contact is damaged or corroded
Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
Update control unit software - Check for the latest control unit update
Powertrain or Engine Control Module faulty
Open fuse


 

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Super Moderator
Joined
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29,116 Posts
Yo Fuzzy,
PCM - MIL ON/DTCs From P0300 to P0308 Set
Article No. 97-8-6 04/14/97
MALFUNCTION INDICATOR LAMP (MIL) - DIAGNOSTIC TROUBLE CODES (DTCS) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, AND/OR P0308 STORED IN MEMORY

LAMP - MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATES - DIAGNOSTIC TROUBLE CODES (DTCS) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, AND/OR P0308 STORED IN MEMORY

FORD:
1996 CONTOUR, MUSTANG, TAURUS, THUNDERBIRD
1996-97 ESCORT
LINCOLN-MERCURY:
1996 COUGAR, MARK VIII; MYSTIQUE, SABLE
1996-97 TRACER
1997 CONTINENTAL

LIGHT TRUCK:
1996 BRONCO, ECONOLINE, EXPLORER, F-150-350 SERIES, RANGER, WINDSTAR
1997 F-150

This TSB article is being republished in its entirety to add the 1997 Continental to the vehicles affected.
CALIBRATION:
Refer to the Calibration Identification Charts for affected calibrations. The calibrations listed are current calibrations Past calibrations for the listed vehicles are also included.

WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.

ISSUE:
The Malfunction Indicator Lamp (MIL) may illuminate and Diagnostic Trouble Codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, and/or P0308 may be stored in memory with no driveability concerns present.

ACTION:
Reprogram the Powertrain Control Module (PCM) using the Service Bay Diagnostic System (SBDS) or New Generation Star (NGS) Tester. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1. For all MIL On concerns, conduct normal diagnostics and repair as required.

2. Check to verify vehicle does not have the latest calibration. If it does not, reprogram the PCM with the appropriate calibration, referring to the following Calibration Identification Chart using the April 1997 or later CD-ROM.

NOTE:
REGIONAL APPROVAL MUST BE OBTAINED WHEN IT IS NECESSARY TO REPLACE THE PCM.

NOTE:
THE FOLLOWING CHARTS LIST ALL CURRENT CALIBRATION REVISIONS. PAST CALIBRATIONS FOR THE VEHICLES LISTED ON THIS CHART ARE ALSO INCLUDED.
Obtain an Authorized Modification Decal (FPS 8262 - obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

NOTE:
DEALERS MUST REPROGRAM THE PCM USING SBDS OR NGS ALONG WITH THE LATEST Parts Block
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 96-26-5
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME 970806A Reprogram Powertrain 0.2 Hr. Control Module (PCM) - All Vehicles 970806B Replace Powertrain Control 0.3 Hr. Module (PCM) - 1996 Econoline, Explorer, Ranger, And 1997 Continental, F-150 4X2 970806C Replace Powertrain Control 0.4 Hr. Module (PCM) - 1996 Contour/Mystique, Thunderbird/Cougar 3.8L, Mustang,Escort/Tracer, Taurus/Sable 3.0L MFI/FFV, And Mark VIII 970806D Replace Powertrain Control 0.5 Hr. Module (PCM) - 1996 Taurus/Sable 3.0L DOHC, Thunderbird/Cougar 4.6L, And 1997 Escort/Tracer, F-150 4X4 970806E Replace Powertrain Control 0.6 Hr. Module (PCM) -1996 Taurus 3.4L SHO, Bronco, F-150-350 (Except 7.3L DIT), And Windstar 970806F Replace Powertrain Control 0.7 Hr. Module (PCM) - 1996 F-250-350 7.3L DIT

DEALER CODING
CONDITION BASIC PART NO. CODE 12A650 08
OASIS CODES: 206000, 698298
RELATED INFORMATION
●□●

DRIVEABILITY - HO2S (HEATED OXYGEN SENSOR), CATALYST, AND FUEL SYSTEM MONITORS - SERVICE TIPS - OBD II VEHICLES ONLY - 96 Bronco, TSB 01-9-7
Source: by Ford via Chilton @ TSB 01-9-7 HO2S Service Tips
Excerpts:
Multiple DTCs (with the same meaning): When multiple (paired) DTCs with the same are set for multiple sensors, it is unlikely that replacing both HO2S sensors will resolve the concern. In most cases, there will be another issue that is causing the codes Examples of multiple (paired) DTCs:
(P0135/P0155),
(P0141/P0161),
(P1132/P1152).
(P1131/P1151)vvehicle comes in with a MIL On concern. KOEO self test reveals DTCs P0135 and P0155 (HTR-11a nd HTR-21 circuit malfunction), with no other DTCs present. The most likely cause of these DTCs would be something in the heater power circuit that both of these HO2S sensors have in common (Example: open or shorted heater circuit wiring or splice). It is highly unlikely that multiple sensors would fail at the same time. When multiple DTCs of this nature are encountered, reviewing the appropriate wiring diagram(s) can help to isolate possible areas of concern. When reviewing the help to isolate possible areas of concern, as wiring diagram, look for things that the affected sensors have in common.
In this example, the most likely cause of DTCs P0135 and P0155 (with no other DTCs present) would be a concern with Splice “B” (refer to Figure 2)
READ MORE on PAGE 13... (Fuse shown is maxi fuse #5 in engine compartment Power Distribution Box)
The HO2S Monitor DTCs can be categorized as follows:
HO2S signal circuit malfunction - P0131, P0136, P0151, P0156
HO2S slow response rate - P0133, P0153
HO2S heater circuit malfunction - P0135, P0141, P0155, P0161
Downstream HO2S not running in on-demand self test - P1127
Swapped HO2S connectors - P1128 and P1129
HO2S lack of switching - P1130, P1131, P1132, P1150, P1151, P1152
HO2S lack of switching (sensor indicates lean) - P1137
HO2S lack of switching (sensor indicates rich) - P1138

DTC Code: P0141
Description: Oxygen Sensor Heater Circuit (Bank 1, Sensor 2)
Probable Causes:
Sensor or solenoid faulty
Connector terminal contact is damaged or corroded
Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
Update control unit software - Check for the latest control unit update
Powertrain or Engine Control Module faulty
Open fuse


 

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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
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88 Posts
Discussion Starter · #9 ·
I got a tune up kit coming, that seems like as good of a starting place as anything. I'll let you know how it goes following that.
 

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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
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88 Posts
Discussion Starter · #10 ·
Tune up kit is all installed. Wasn't able to take it out tonight though, I still need to reseat the passenger side front wheel well, had to take that down to get access to back passenger side plug. She started up and idled fine though. I'll get her wrapped up and out for a test drive tomorrow.
 

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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
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88 Posts
Discussion Starter · #11 ·
Tune up fixed it. All 8 plugs had pretty large gaps. Next on the list is the alternator / battery, and the O2 sensor.

Also where does this ground go to?

171608
 

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Tune up fixed it. All 8 plugs had pretty large gaps. Next on the list is the alternator / battery, and the O2 sensor.

Also where does this ground go to?
how large of gaps? 0.055 is a good gap, as long as you have the coil to fire it. Even my 86 stock coil fires 0.05 perfectly fine.
 

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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
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88 Posts
Discussion Starter · #13 ·
how large of gaps? 0.055 is a good gap, as long as you have the coil to fire it. Even my 86 stock coil fires 0.05 perfectly fine.
Recommended was like 42 to 45, I didn't measure the ones taken out as the plugs were super old and the gaps looked pretty big. It really only had problems at freeway speeds or heavy acceleration. I took it for a run after the tune-up and she's back to running good with no hesitations or anything on any acceleration or speed.
 

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Recommended was like 42 to 45, I didn't measure the ones taken out as the plugs were super old and the gaps looked pretty big. It really only had problems at freeway speeds or heavy acceleration. I took it for a run after the tune-up and she's back to running good with no hesitations or anything on any acceleration or speed.
sounds good, glad you got her running in tip top.
 

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1996 Eddie Bauer Bronco with 5.8 V8 Automatic, with roll cage. Taylor, Michigan
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Discussion Starter · #15 ·
sounds good, glad you got her running in tip top.
Well I'd like to identify where that ground goes that I pictured earlier. It might explain my battery fluctuations I was experiencing. You have any idea on that?
 

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Well I'd like to identify where that ground goes that I pictured earlier. It might explain my battery fluctuations I was experiencing. You have any idea on that?
goes to your hood. there should be a bolt or screw just above that on the underside of the hood, that is where that goes to.
 
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