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Prev Professional Automotive Repair Technical Discussions for March 20, 2019
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Open Help Requests for All Makes and Models
Help Request Answers
2011 BMW X5 xDrive35i 3.0L MIL Lamp on VIN: 5UXZV4C50B
gremlins everywhere -- abs,traction,red brake light,engine light, 4x4 transmission warning in display, coolant fan on and off, electrical fault message don't drive, no radio, codes in a lot of modules. instrument cluster, control unit input supply power 14...
1993 Chevrolet C3500 Cheyenne 6.5L no upshift. VIN: 1GBKC34F4P
i got a dinasour here,looking for some clarification.does not shift has first and rev.no communication with tcm.tcm has power/grnd etc; connector at trans has power pin e pink?.one bit of info the wiring diaghram for the tcm doesn,t match tcm to trans,i,ll...
2011 Chevrolet Silverado 1500 LT 5.3L MIL Lamp on VIN: 3GCPCSE04B
Hi everyone, this truck continues to have p0604 hard code after two reman ecm's. All power and grounds to pcm have been checked and all is well. there no codes in any other module. ECM has always fixed this code for me and I suspect another bad module. I d... Trouble codes: P0604
2012 Chevrolet Malibu LT 2.4L Cuts out, Stall VIN: 1G1ZC5E0XC
Car will stall going down road at any speed. no check engine lites or codes. No security light. will start for about 5 seconds the stall.disconnecting the battery and re hooking it up will start and run fine for a day or to then the same thing happens agai...
2012 Chrysler Town & Country Touring L 3.6L Blind Spot Monitor VIN: 2C4RC1CG3C
This is a strange one! I replaced both Blind Spot sensors last month, both had bad corrosion and no communication with the module. Also replaced one of the connectors because of corrosion. The problem is that the sensors are TOO sensitive, that's the best ...
2008 Dodge Avenger SE 2.7L starter
Vehicle came in for front power windows inoperable and had a push button start bypassing tipm. No problem used tipm fixed windows and appeared to fix cranking issue so I thought. The car came back with no crank starter shot. Replaced starter and came back ...
2007 Ford F-150 XLT 5.4L Support Bearing VIN: 1FTPX12V57
I'm not looking for help as much as i am looking for information. This is a common failure and i know the fix is to replace the complete drive shaft assembly. What i want to know is if anyone has taken one of these apart and can explain why the bearing can...
2013 Ford F-150 FX4 3.5L Cooling Systems VIN: 1FTFW1ET1D
Good evening gentlemen. I have coolant running along the right side of the transmission from back of the engine. The heater hoses are dry. Any help is appreciated
2013 GMC Yukon Denali Hybrid 6.0L starting VIN: 1GKS2GEJ7D
Vehicle in MINOR front end collision, bumper cover & support damaged. A/C condenser,radiator & radiator support NOT damaged. ALL computers scanned, NO CODES STORED, however 12v Battery was DISCONNECTED ! Serial Data Gateway Module had CRASH Detected messag...
2014 GMC Sierra 1500 Denali 6.2L Misfire VIN: 3GTU2VEJ4E
have misfire cyl.5.checked compression,ok 240 cranking,80 runnung.no vacuum leaks.this cylinder is not a adm dropping cylinder.pulled valve cover,normal valve movement.pulled intake to get at injector and harness.ohmed ok.1.8ohm.tried to check noid but wit... Trouble codes: P0300 (Misfire)
2003 Honda Odyssey EX 3.5L speedometer VIN: 5FNRL18013
to follow up on my last tech help I am still in the weeds. I have this honda odyssey and the speedometer does not work look at all vss in abs including in engine data and trans data and getting mph readings in all modules so now im into a flow chart for th...
2013 Lincoln MKT EcoBoost 3.5L Check Engine Light VIN: 2LMHJ5AT8D
This Lincoln is throwing code P0016 for Bank One VVT Crankshaft/Camshaft correlation. I explained to the customer that this was either the valve or the actuator and told him the expense of replacing both. He wanted to gamble with replacing the valve, which...
1989 Mercedes-Benz 300SEL 3.0L monovalve VIN: WDBCA25D6K
Hello techs, i have a 1989 Mercedes 300sel. Customer complains that heater is NOT working properly. When sitting at idle the heater works great, after a short drive the heater starts to blow col;d air. I have checked all the vacuum diaphragms and they all ...
2014 Mercedes-Benz GL450 4.6L Heater Core VIN: 4JGDF7CE1E
Customer states no heat on passenger side when driving. Test drove verified complaint. At idle vehicle has heat but could be much hotter. After a test drive heat gets much colder checked duct temp from left(driver) to right(passenger side) 102F, 98F, 70F 6...
2012 Nissan Titan PRO-4X 5.6L Pedal VIN: 1N6AA0EC4C
Hi. I am having a tough time trying to diagnose the problem on this Titan. Intermittently has a hard pedal and brake light comes on. Stores code P1142 for the pressure sensors. We replaced the sensors in the master and it didn't take care of the problem Gr...
2014 Nissan Versa 1.6 SV 1.6L engine VIN: 3N1AB7AP3E
vehicle came in from another shop with p0014 exhaust vvt solenoid circiut malfunction ,thet had already replaced vvt solenoid and cam sensor ,i dont have a lot of experience on this any help be greatly appreciated,
1992 Toyota 4Runner SR5 3.0L No Start, Hesitation, Misfire VIN: JT3VN39W3N
So heres the story. Customer brings me the truck after several attempts to repair from another shop. concern is that veh will start and run just fine. after long of short time driving shut veh off. let soak for maybe 10 mins veh will flood and not restart....
2010 Toyota Tundra 5.7L Poor Idle Quality VIN: 5TFRY5F12A
Vehicle came from another shop rear crank seal had been replaced; engine was turned backwards and jumped time. Two teeth bank 1, one tooth bank 2. Idle at 1700 RPM. Put engine back in correct time; idle still high and check engine light on. Tore down again... Trouble codes: P0015 (camshaft position b timing overretarded b1), P0016 (crankshaft camshaft position correlation B1 Sensor A), P0018 (crankshaft camshaft position correlation B2 Sensor A), P0025 (camshaft position timing overretarded B2)
2009 Volkswagen Passat Komfort 2.0L Not Going Into Any Gear VIN: WVWJK73C89
The vehicle came in for replacement of rear main seal. The car had a vacuum leak from the seal that was causing misfires. After the repair work was done, the vehicle was test driven and appeared to be in good working order. Shifting was fine at this po...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 Dodge Ram 2500 SLT 5.9L MIL Lamp on VIN: 1D7KS28C06
Thanks everyone who responded to this help request. I was initially suspicious of the heat damage to the power lead from the battery to the heater relay. I measured 250mA drop from batt to relay and 800mA drop from batt to heater. I have gotten approval to rep... Trouble codes: P0541 (intake air heater 1 low voltage).
2005 Ford F-150 Lariat 5.4L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on, Backfire in intake VIN: 1FTPX12595
Well I was finally able to get this F-150 off my back! I appreciate all the suggestions I received. I did as Rich, Glenn and Kyle suggested and used my Vantage scope to check cam timing. I back probed the circuits at the PCM and compared the patterns to one I... Trouble codes: P0172 (Rich Bank 1), P0175 (Rich Bank 2), P0420 (Catalyst efficiency Bank 1), P0430 (Catalyst efficiency Bank 2), P2196 (O2 B1S1 stuck rich), P2198 (O2 B2S1 stuck rich).
2007 GMC Envoy SLE 4.2L No tach VIN: 1GKDT13SX7
Used a lab scope on crank sensor. Had what I call an anomaly that was consistent in firing order. Pulled sensor, and looked at reluctor with borescope. Found a gouge or welding slag on reluctor about 20 thousanths of an inch thick. Replaced engine with another... Trouble codes: P0335, P0336, P0171.
2015 Honda CR-V EX 2.4L Blower Motor VIN: 5J6RM4H30F
relaced expansion valve, evap temp probe and evaporator and its all good. Thanks!
2004 Volvo XC90 T6 2.9L No Start VIN: YV1CZ91H04
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