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P0402 Diagnostic Trouble Code Discussion for August 2009

EGRC-BPT Valve Function


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Trouble Ticket Help Requests for DTC P0402
Help Request Posted
2003 Lincoln Navigator 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5LMFU28R73
P0402: Excessive EGR Flow Detected (ESM System). HI Y'ALL!! THis truck is a real headache!! Original complaint was misfire on accel! Found misfire events on mode 6 cyl #3 had about 1800 misfires in memory! OK replaced all spark plugs and cyl #3 coil! There were no codes at that time! Later found vacuum leak ...
August 09, 2009
2000 Ford Ranger XL 3.0L Excessive Emissions, Poor Idle Quality, Surge VIN: 1FTZR15V6Y
P0402: EGR excessive flow. This engine still has excessive valve noise and rough idle. Has anyone run into cracked blocks with these 3.0's? I believe there is still exhaust entering into the cooling system but I can't pick it up with a block test. I don't have an exhaust analyzer. Oil p...
August 12, 2009
1997 Mercury Cougar XR-7 4.6L MIL Lamp on VIN: 1MELM62W0V
P0402: . check engine light on po402. code set on 2 cold startup under 165"f .. warm up car ok no code. removed egr , tube,cleaned t bodey. inspected dpfe tubes clean.dpfe replaced. dpfe at 1.18 idle. egr stalls engine when opened manuley with vac. preform koeo pas...
August 19, 2009
2001 Ford F-150 XLT 5.4L MIL Lamp on VIN: 1FTRWO7L11
P0402: excessive egr flow detected. hey thank you in advance.came in with a p0402 found dpfe at fualt the only problem is this truck has gone through 3 dpfe's alreadly. once removed i can see it is filled with water i know water can be in the exhuast but i was wondering if anyone knew what would...
August 20, 2009
2003 Lincoln Navigator 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5LMFU28R73
P0402: Excessive EGR Flow Detected (ESM System). HI Y'ALL!! THis truck is a real headache!! Original complaint was misfire on accel! Found misfire events on mode 6 cyl #3 had about 1800 misfires in memory! OK replaced all spark plugs and cyl #3 coil! There were no codes at that time! Later found vacuum leak ...
August 09, 2009
2000 Ford Ranger XL 3.0L Excessive Emissions, Poor Idle Quality, Surge VIN: 1FTZR15V6Y
P0402: EGR excessive flow. This engine still has excessive valve noise and rough idle. Has anyone run into cracked blocks with these 3.0's? I believe there is still exhaust entering into the cooling system but I can't pick it up with a block test. I don't have an exhaust analyzer. Oil p...
August 12, 2009
1997 Mercury Cougar XR-7 4.6L MIL Lamp on VIN: 1MELM62W0V
P0402: . check engine light on po402. code set on 2 cold startup under 165"f .. warm up car ok no code. removed egr , tube,cleaned t bodey. inspected dpfe tubes clean.dpfe replaced. dpfe at 1.18 idle. egr stalls engine when opened manuley with vac. preform koeo pas...
August 19, 2009
2001 Ford F-150 XLT 5.4L MIL Lamp on VIN: 1FTRWO7L11
P0402: excessive egr flow detected. hey thank you in advance.came in with a p0402 found dpfe at fualt the only problem is this truck has gone through 3 dpfe's alreadly. once removed i can see it is filled with water i know water can be in the exhuast but i was wondering if anyone knew what would...
August 20, 2009