intermintant
Thread Starter
|
Freshman User
Joined: Aug 2008
Posts: 27
Likes: 0
From: honolulu
intermintant
93 bronco 5.8, automatic. runs good then idle drops to 400 to 500, voltmeter also drops to 11 to 12 volts until rpm increases, check engine light comes on and engine runs ruff, no power, black smoke on acceleration . After restarting everything is fine. Code was 6?? something to do with a trans solonoid ? or maybe egr ? What to do???
Posting Guru
Joined: Apr 2005
Posts: 2,018
Likes: 0
From: Longview, TX
Pull codes and write down the results for KOEO and continuous memory codes. The following has lots of info.
Ford Fuel Injection
Ford Fuel Injection
Thread Starter
|
Freshman User
Joined: Aug 2008
Posts: 27
Likes: 0
From: honolulu
thanks for the input folks..... I checked KOEO codes , were 111 , 10 ,111 which meant clear on tests and continuous .. KOERunning gave 538, 536, and 632..... I changed battery terminal connecters which were corroded[didn't change cables], I threw in a new EGR sensor ,just because......but the bug keeps coming back. ONE time at start up the fuel pump didn't stop running before I cranked the engine over , but after offing the key the pump stopped after the normal 2-3 seconds. Could anyone out there help me understand what the codes mean???? I APPRECIATE ANY AND ALL RESPONSE i'm
ONE FINGER
ONE FINGER
Posting Guru
Joined: Apr 2005
Posts: 2,018
Likes: 0
From: Longview, TX
Ford Fuel Injection Three-Digit Codes 526-586
Ford Fuel Injection Three-Digit Codes 587-656
During KOER if the the gas is not punched to the floor, brake tapped and OD switch turned off and on you get these codes.
Ford Fuel Injection Three-Digit Codes 587-656
During KOER if the the gas is not punched to the floor, brake tapped and OD switch turned off and on you get these codes.
Thread Starter
|
Freshman User
Joined: Aug 2008
Posts: 27
Likes: 0
From: honolulu
Thanks B4hntn. So are you saying that during the test I should have turned off the od switch, tap the brake, and gunned the engine? I do remember the RPM going up on its own........ I guess new battery cables are the next parts I'll throw at the problem....maybe a fuel regulator if the cables don't help...
Posting Guru
Joined: Apr 2005
Posts: 2,018
Likes: 0
From: Longview, TX
Yes, but at times shown in the procedure. I can't remember when just when. Remember the order is punch the gas for a high rev (think right after KOER shows 10), tap the brake, turn OD off and back on.
There are many parts for engine control. Before you start throwing parts at it you might want to do a simple test on the IAB. Ford Fuel Injection Idle Air Bypass (IAB)
There are many parts for engine control. Before you start throwing parts at it you might want to do a simple test on the IAB. Ford Fuel Injection Idle Air Bypass (IAB)
Trending Topics
Thread Starter
|
Freshman User
Joined: Aug 2008
Posts: 27
Likes: 0
From: honolulu
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread Starter
|
Freshman User
Joined: Aug 2008
Posts: 27
Likes: 0
From: honolulu
check engine light came on today...doing 35-40....I tried hitting the over drive off switch...wouldn't work .... after check engine light went out , everything worked fine again. Could that O.D. switch affect the engine??? another clue to the puzzle...can't wait to solve it