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Prev Professional Automotive Repair Technical Discussions for October 23, 2006
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Open Help Requests for Ford
Help Request Answers
1995 Ford Mustang 3.8L Hesitation, Cuts out, Misfire VIN: 1FALP4045S
When cold the engine runs ok - no problems - after it warms up it begins to run rough and engine shakes - the warmer the car gets the rougher it gets - the scan data all reads good except the Baro readings - they have ranged from as low as 141 to 150 and specs...
1999 Ford F-250 Lariat 4.6L Wiper system VIN: 1FTPF27W8X
Came in last week for brake lights on all the time. High mount third brake light work fine. Found defective multifunction switch. Replace switch all was fine. Also had a bad heater core. Came back this week to fix heater core thats when they told us that the w...
1999 Ford F-150 Lariat 4.6L Misfire VIN: 1FTRF17W3X
Sorry I have to ask for help on this one just dont make sense to me. I have tried replacing the injector and still the same only shows misfire #6 did check as well as I could the injector spary looks like all the others (my shop whole lot of test equipment)doe... Trouble codes: P0306 (Misfire Cylinder 6)
2000 Ford Expedition XLT 4.6L steering VIN: 1FMEU1663Y
this is a 2000 ford expedition w-o air ride,customer orignal complaint was trans shifting harsh at hwy speed,road test with ngs,no codes and all lock up data good,after second visit,customer brought vehicle with snowmobile and trailer as he said this agrivated...
2000 Ford F-150 Lariat 5.4L Poor Idle Quality VIN: 1FTRX07L5Y
customer complaint about high idle. in park truck will idle 700 rpm and flair up to 1000rpm and then fall back to normal. but the real problem is when driving the that the IAC acts like a cruse controle when you get up to speed and back off the gas the truck w...
1988 Lincoln Town Car Cartier 5.0L No Start VIN: 1LNBM83F2J
Thanks for your time. This one is killing me. Vehicle sat for a while, customer went to start it back fired, blew muffler apart, then would not start. Towed into shop, if it does start it will barly run with pedal to floor then stall. Plugs were fouled out & s... Trouble codes: 34 (egr evp closed valve signal too high), 84 (egr vacuum regulator ckt. fault)
1999 Lincoln Town Car Signature 4.6L MIL Lamp on VIN: 1LNHM82W9X
hi guys this car keeps coming back with codes p0171 &p0174 I did most of the commun fixes & cleaning but no luck Im thinking air flow meter Trouble codes: P0171, P0174
1992 Mercury Grand Marquis LS 4.6L Alternator light on dash VIN: 2MECM75W2N
The vehicle was towed in with a dead battery. Charged battery. Checked alt regulator output, 12 volts. Checked all fuses, and didn't find any bad ones. Checked alt light on dash, and it doesn't come on any time, key on or off. Replaced alt & reg. with rebuilt ...

Fixes & Summaries for Ford
Fix/Summary Answers
1988 Ford Thunderbird 3.8L Starter Solenoid VIN: 1FABP6042J
Thanks for all the help a fourth starter relay from car quest fixed it! dealer parts did not... go figure
1997 Ford Escort LX 2.0L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FALP13P0V
After replacing the PCM and still having the code come back. I really started look into replacing the egr. The reason why it was not replaced before because according to all the testing. the EGR valve was working. But what it was, the valve was not working smo... Trouble codes: 401 (insuffiecient EGR flow), 1408 (excessive EGR flow).
1998 Ford F-150 Lariat 5.4L Poor Idle Quality VIN: 1FTRX18L4W
Well, the problem turned out to be the vacuum fitting (elbow) for the PCV valve. It is hidden behind the intake manifold and is difficult to see. To access it we needed to remove the idle air motor but if you have smaller hands you may be able to remove it wit... Trouble codes: 605 (original code calling for ecm replacement which we have done), 171 (lean condition R/bank 1 adaptive at limit), 174 (lean condition L/bank 2 adaptive at limit).
1998 Ford Ranger Splash 3.0L MIL Lamp on VIN: 1FTYR14U5W
Thank you for your replies. The fix was a broken 5v ref wire br/w at the front of the fuel tank. My clue was the FTP sensor pid volts was 1.39v with fuel cap off (open to atmosphere). It should be between 2.4v - 2.9v. After repairing the broken wire my FTP sen... Trouble codes: P1450 (Unable To Bleed Up Fuel Tank Vacuum).
2000 Ford Windstar LX 3.8L Misfire VIN: 2FMZA5144Y
Well everyone after checking the egr ports, several times and cleaning them extensively. I still had a miss. I decided to switch two of the injectors, even though I had good pattern and flow, current ramping tested fine and no injector fault was displayed I to... Trouble codes: P0305.
2000 Ford E-150 Econoline 4.6L Misfire VIN: 1FTRE14W4Y
Thanks for all your help- It was a long term deal to figure this out. Jeff and Stewart both suggested checking fuel trim under load. It was running in the -8 to -10 range, nothing crazy. Interestingly fuel trims were equal both banks. We had already motorvac...
2002 Ford Ranger XL 4.0L noise VIN: 1FTZR15E12
Most of the replies I received suggested the timing chain tensioner and they were right. I finally got hold of the TSB 04-15-4 which states ' noise is heard during hot and cold engine operation(but mainly on cold engines)under acceleration, typically at 2400-2...
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