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Prev Professional Automotive Repair Technical Discussions for February 14, 2018
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Open Help Requests for All Makes and Models
Help Request Answers
2002 Audi TT Quattro 1.8L Charging Lamp (Instrument Cluster) VIN: TRUWT28N22
Customer had -previously- come in for a potential charging system issue. Complained of having battery light in instrument cluster come on and off randomly. During KOEO inspection found FCM to click constantly. KOER found charging voltage to fluctuate signi...
2004 BMW 525i 2.5L Stall VIN: WBANA53514
I just inherited this problem vehicle from another tech. The vehicle starts, runs for a second or two then dies when cold. It does this a couple times, then starts and runs. It seems like it needs to set the codes listed in order to start. I cleared the co... Trouble codes: 3C1F, 2766 (Intake cam sensor duration), 3C1D, 2768 (Intake can sensor phase position), 299A, C0DA7
2005 BMW X3 2.5i 2.5L MIL Lamp on VIN: WBXPA73475
This one started as an easy fix. Codes P0171 and P0174 both banks running lean. We checked the intake boot and found several cracks. We sprayed carb cleaner and watched the trims go from + to -. After replacing the boot the total fuel trims were still indi... Trouble codes: P0171 (Lean Bank 1), P0174 (Lean Bank 2)
2008 BMW 535i 3.0L shifter, trans operation VIN: WBANW13518
Ok guy we have a problem child. This vehicle was brought in for the infamous shifter malfunction issue. Not wanting to go into drive or reverse. Puts itself back in park. We replace the mechatronic sleeve, and seals (rectangular piece) and now the only cod...
2009 BMW X6 xDrive35i 3.0L MIL Lamp on VIN: WBAFG4106A
Hi BMW techs; this X5 runs good; but goes into performance reduced mode especially driving uphill under load; due to code 30ff. The entire vacuum system has been checked with smoke machine & found no leaks. Also the pressure side on intake has been checked... Trouble codes: 30FF
2011 BMW 335i xDrive 3.0L Rear defrost VIN: WBAPL5C53B
Hi BMW techs, We are looking for a little guidance on this vehicle. The rear heated window is inop. The relay can be activated via the output test using our Autel scan tool. The button on the climate control is recognized as operational in the scan tool da...
2011 BMW 335d 3.0L No Start VIN: WBAPN7C54B
No start since carbon cleaning due to MIL and codes for rough run, EGR and swirl flap. Have done bleed procedure in Autologic numerous times and the engine sounds like its about to start but never does. Have even cracked the fuel lines loose at the injecto... Trouble codes: 4B90
2011 Chevrolet Suburban 1500 LT 5.3L alternator guage VIN: 1GNSKJE33B
service battery charging system message is illuminated in instrument cluster.Alternator gauge is not working, it performs a gauge sweep when started but doesn't read after that. Battery tested fine. Bcm has a b1517-07 stored. I cleared code comes back with...
2007 Dodge Ram 2500 SLT 6.7L MIL Lamp on VIN: 3D7KS28A67
Hey guys! Got a fun one here. I keep getting injector compatibility codes for cylinders 2, 3, 6. I have removed the injectors and verified the codes. The pcm had been replaced previously and the correction codes were not entered.The pcm was later flashed b... Trouble codes: P2691, P268E, P268D
1995 Ford Ranger Splash 2.3L theft lamp VIN: 1FTCR14A1S
no codes on engine, went into theft system with scanner say's check power and fuses won't go in. truck runs fine but theft light won't go off, does not flash just stays on and cust un-hooked horn. does not care if theft works but would like horn and thinks...
1998 Ford Ranger Splash 3.0L MIL Lamp on VIN: 1FTYR14U7W
Hello On Friday afternoon I replaced the upper and lower intake gaskets. I jumped off the bridge and made a decision. Well the vehicle came back Monday with the P0174 code again. This time I have freeze frame data which is as follows; Engine ... Trouble codes: P0174 (Fuel system leaN bank 2)
2006 Ford F-150 XLT 5.4L Drive train VIN: 1FTPX14V16
Vehicle came in customer complained of heavy vibration. Stated he was stuck in the mud, started Erving it to get unstuck and he suddenly heard a pop and then it started vibrating badly. It usually starts normal ad doesn't vibrate and after a couple of minu...
2011 Ford F-150 Platinum 3.5L Indicated Overheat VIN: 1FTFW1ET4B
This F150 Ecoboost is killing me. It came in a week ago with a complaint of indicated overheat condition driving on the highway in -40 weather with no significant load on the truck. I verified that the coolant freeze protection was good to -45F and then re... Trouble codes: P0217 (Engine Coolant Over Temperature), P0217 (Engine Coolant Over Temperature)
2000 Honda Passport EX 3.2L Torque converter clutch VIN: 4S6DM58W8Y
This is a customer at my high school auto program. They had it at their shop and were told "we don't work on transmissions, but you just need a solenoid." We looked at it, pulled the pan to measure at the solenoid and the solenoid was clearly faulty (open)...
2008 Honda Pilot Special Edition 3.5L Timing Belt VIN: 5FNYF18378
Calling all Honda technicians! After a timing belt break on a 2008 Pilot, pulled heads and found valves bent in cyl 1 & 5. Heads sent out and repaired. Everything back together and a gates timing belt kit installed (belt, idler, tensioner and pump). Now, a...
2013 Infiniti QX56 5.6L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: JN8AZ2NF0D
Vehicle towed in due to running really rough, ran well for us @ first them started running badly, Truck is dumping fuel and running extremely rich, runs well on the road but is always running rich, Sensors reading proper info, reading rich condition, Good ... Trouble codes: P0300, P0175
2008 Jeep Grand Cherokee Limited 5.7L MIL Lamp on VIN: 1J8HR58298
this customer puchased this vehicle from a local used car dealer.he states that when negotiating to purchase the vehicle,the mil was on,and he asked the dealer to take care of that,and to also have a fresh inspection sticker on it when he took delivery.the... Trouble codes: P013C
1997 Nissan Quest GXE 3.0L MIL Lamp on, MIL Lamp on VIN: 4N2DN1115V
Vehicle stuck lean P0171 code, runs ok thanks for your help. Trouble codes: P0171
2007 Pontiac G6 GT 3.9L camshaft VIN: 1G2ZH36137
Been 2 weeks since we replaced intake gaskets and now vehicle is back with multiple misfires and squeaky noise, like something wasnt getting oil. Could pinpoint noise to front valve cover. Pulled valve cover and saw nothing that looked oil starved. Went ah...
2003 Subaru Forester XS 2.5L MIL Lamp on VIN: JF1SG65683
found fuel pressure at 22 psi and goes up when hose is pulled off 32psi replace fuel pump the samething is there something Iam missing here Trouble codes: P0130 (o2 sensor circuit b1s1), P0171 (bank 1 too lean)
2003 Subaru Forester XS 2.5L MIL Lamp on VIN: JF1SG65683
no intake leaks or exhaust leaks replace fuel pump,regulator,filter. replace afs and downstream o2 sensor check wires from afs connector to pcm all good (there is no flash for this car have the j2534 disc from subaru)also the injectors are good fuel pressu... Trouble codes: P0130 (o2 sensor circuit b1s1), P0171 (bank 1 too lean)
2015 Volvo V60 T5 Premier 2.0L MIL Lamp on VIN: YV140MEB6F
I am pretty familiar with Volvo's but his one has me missing something. I haven't done a lot with the new 4 cylinder engines and that is something new for Volvo too. I have one fault and it is P017100. Under Hard load and initial start up it show fuel trim... Trouble codes: P1710

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2012 Chevrolet Colorado LT 3.7L Poor Idle Quality, Stall VIN: 1GCHTDFE9C
This truck has driven me crazy. While I've not fixed it yet I am sure of the cure. I've worked almost 4 days trying to figure out what was wrong and naturally think I'd done something wrong on the engine install because the issue was not there before. I notice...
2004 Ford F-150 FX4 5.4L Mechanical VIN: 1FTPX14544
First of all, thanks to all who took the time to read and reply. Todd and Jim were correct, it was a small exhaust leak whistling when throttle was snapped open. I dropped the right-side exhaust pipe to let it exhale a little easier, and the whistling noi...
2013 Ford Escape SEL 1.6L Mechanical VIN: 1FMCU9HX0D
I had my transmission shop remove the transmission, disassemble, and inspect. They sent the torque converter to their local shop where they found the converter clutch damper springs came off the retainers creating the noise issue. It also generated some fine m...
2014 Ford F-350 Super Duty XLT 6.7L fuel VIN: 1FT8W3BT5E
lift pump had failed and burned up high pressure pump due to lack of fuel. Metal debris contaminated all fuel injection. Required both pumps and a "service kit" for the injection--injectors duel rails ect. Only way to rid the system of metal. The injectors had...
2011 Infiniti G37 X 3.7L High Horn VIN: JN1CV6EL6B
Mark was very helpful. The second Relay box in the left front was hidden under the cold air intake and it was relocated to a hidden place. Once i found that relay i could see that it was corroded. Swapped the relays and voila fixed. Obviuosly the relay was sho...
2011 Kia Optima SX 2.0L No Start, Cuts out, Stall VIN: KNAGR4A63B
Thanks to all who replied. We replaced the pump and customer has driven the car hard and long enough with satisfaction for us to declare it fixed. You all properly determined that the amp wave form and symptoms I offered definitively indicated a bad low ...
2007 Pontiac Solstice GXP 2.0L Axle Vent VIN: 1G2MG35X17
We replaced the rear diff fluid, after talking the customer they hinted that they may have changed the fluid with some sort of aftermarket fluid. After known correct fluid was put in no leak is present.
2003 Saturn Vue 2.2L No Start, Uneven cranking VIN: 5GZCZ33D03
Well, for lack of an additional update I will close. Still no luck getting it to run. Oil in the cylinders did raise the compression, but still a little uneven cranking. Does have gas in the oil so it needs changed. Haven't started checking individual contro...
2006 Subaru Outback 2.5i Limited 2.5L No Start, No crank VIN: 4S4BP62C66
Thanks for the help. Leo put me on the right track by measuring the voltage at the mass air flow sensor. I had 2 volts of drop at the sensor. I decided to unplug the engine harness and noticed that the lock was not locked in. I locked the harness in and all is... Trouble codes: ER, HC.
2005 Toyota Corolla CE 1.8L MIL Lamp on VIN: JTDBR32E75
Stephen [...] III control the vent valve right at the ecm to see if the circuit is bad Fair enough however seems circuit intact ? when commanded checked at solenoid the ground is momentarily ?zero? (proper) but just switches off within a second after it is a... Trouble codes: P0441 (Evaporative emission control system incorrect purge flow), P0441 (Evaporative emission control system incorrect purge flow), P0441 (Evaporative emission control system incorrect purge flow).
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