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Professional Automotive Repair Technical Discussions for August 31, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for All Makes and Models
| Help Request | Answers | |
| 2013 Buick Verano 2.4L MIL Lamp on VIN: 1G4PP5SK6D Looking at it for same shop after maf had little effect. Fuel trims collectively are negative (-) 55% at idle after driving it in from other shop last night, did not diag until today. Sometimes engine will run a bit on after ignition is turned off. Computer se... Trouble codes: 172 (bank 1 rich) |
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| 2009 Chevrolet Cobalt LS 2.2L Radiator fan VIN: 1G1AS58H59 Hello Friends, got this one with intermitent A/C. Scanned system, got DTC P0532. Recoverd charge, replace A/c pressure transducer, recharge with 14.4 ounces. Scanned again, no DTCs, Start engine, turn on A/C , on the scann tool got the A/C pressure sensor volt... |
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| 2010 Chevrolet HHR LT Panel 2.2L Consol Shifter VIN: 3GNBABDBXA Once inside and sitting in the driver's seat, you can depress the brake pedal and move the shifter anytime you want. But give it 1-2 minutes with the ign key in the 'run' position and that same shifter will lock down and refuse to move. In the meantime the ign... |
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| 2007 Dodge Ram 3500 Laramie 6.7L New Ecm VIN: 3D7KS28A17 Hi everyone. Just installed a new dealer supplied ECM. The number on the engine is [...]. The old ECM was toast could not get original calibration out of it. My question is do I need to install a bootloader in this ECM before flashing in the calibration? ... Trouble codes: U1601 |
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| 2001 Ford Mustang GT Bullitt 4.6L Pats Theft VIN: 1FAFP42X81 Hey all thank you for taking the time to read this . 2001 mustange intermittent no start . When no start occurs there is no injector or ignition coil current , codes p1260 is set in the pcm . Scoped the scp buss show 0-5v and 5-0v key on but drops to 0v when c... |
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| 1999 Honda CR-V EX 2.0L Transmission VIN: JHLRD1764X HELP Tranny guys!! I have a Honda CRV that used to belong to my employee,He sold it to one of my customers. The clutch went out shortly after so we fixed for cost of parts only, A few months later it came back slipping again. It only slips after driving for a ... |
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| 2005 Hyundai Elantra GLS 2.0L Electronic VIN: KMHDN46D35 We are looking for the transmission control module, is it part of the power train module? |
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| 1996 Mazda Miata 1.8L No Start VIN: JM1NA353XT I got a 1996 mazda Miata 1.8L engine that cranks but wont atart. We have no pulse and no spark. First we found the crank sensor gap on the crank pulley too far out so we adjusted the gap and also checked the timing marks but that didnt help. So i scoped the ... Trouble codes: P0340 (Cam position sensor) |
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| 2012 Mini Cooper 1.6L No Start VIN: WMWSU3C57C I have gathered cam and crank patterns, need known good patterns. Vehicle will want to start but will loose spark after a few engine revolutions and spark plugs will saturate with fuel due to injector pulse still present while no spark. No codes are present . |
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| 2003 Nissan Sentra GXE 1.8L No Start VIN: 3N1CB51D03 Have this Nissan that will not start, from what I've read chain stretch is common, I scoped Cmp & CKP, included the Ign & Inj pulse for cyl 1. From what I see the timing is off, what I cant seem to wrap my brain around is why the injector pulse for cyl 1 happ... |
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| 2004 Subaru Outback H6 35th Anniversary Edition 3.0L MIL Lamp on, VIN: 4S3BH81594 Well car came in for P1443 code. WE scanned to confirm we pluged in the green connector and didnt hear much of snap or noise in charcole cannister we hooked up a noid light of the connector and shined brightly . We also looked system over smoked the best we co... Trouble codes: P1443 (evap emissions) |
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| 2007 Subaru Forester XT Limited 2.5L Misfire VIN: JF1SG69617 This vehicle came came in for a # 4 Misfire. Customer wanted all 4 injectors replaced,(Read it on-line). Convinced him to try a tune-up first. Did standard tune-up, Plugs, etc. Did compression test, 145 - 150 all cylinders. Took coils from the right bank and s... Trouble codes: P0304 (Misfire Cylinder 4) |
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| 2005 Toyota Tundra 4.7L MIL Lamp on VIN: 5TBKT42125 MIL on, no performance issues. I can't find much info on what PIDS to expect on scan data. All VVT scan data is showing 0 at all speeds which doesn't seem right. What is it supposed to show? Scope tested both VVT sensors and they appear good. Activating the VV... Trouble codes: P0018 (Crankshaft position - camshaft position correlation bank 2 sensor a) |
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Fixes & Summaries for All Makes and Models
| Fix/Summary | Answers | |
| 2007 Audi Q7 Premium 4.2L rt outer brake light VIN: WA1BV94L57 Customer has not returned. Replies are as follows. Possible defective tail lamp assembly. Check for water damage in the module(found none). Harness and burned contact problems |
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| 1999 Cadillac DeVille d'Elegance 4.6L Cooling fan VIN: 1G6KE54YXX The replacement PCM fixed the issue. I just wasn't willing to let it get hot enough before I was stopping it. Fans would not kick on at all before with old PCM. Replacement PCM kicks on low speed around 220, and high speed around 225 degrees. In my opinion... |
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| 2002 Chevrolet Trailblazer LS 4.2L Seals VIN: 1GNDT13SX2 Thank you for all of the replies - I had previously tried using an extension with a socket to install the seals and I am sure you can make that work but I did not have very good luck, I had already ordered the special installation tool which you can fit into t... |
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| 2002 Chevrolet Silverado 1500 5.3L 4wd engagement VIN: 1GCEK19TX2 Thanks for the help guys, those that said to pull transfer case unit were correct. We installed rebuilt transfer case and vehicle is down the road. |
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| 2006 Chevrolet Silverado 3500 LT 6.6L IGN O fuse VIN: 1GCJK33D66 Well Dave was the winner this time around, I had failed to look at power distribution diagrams and had not realized that the ign O fuse feeds the GPCM too. After I discovered that, I started going after that section of wiring and found that the PNK wire, (comi... |
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| 2006 Chevrolet Tahoe Z71 5.3L Unknown VIN: 1GNEK13T56 Installed remanufactured jasper transmission but just wanted to isolate a specific part if customer opted to do a rebuilt in house. |
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| 2015 Chevrolet Silverado 3500 HD LTZ 6.6L fuel rail pressure VIN: 1GC4K0C84F Thanks everyone for the help on this pickup. The FPR #1 was around 35% at idle and #2 was the same at idle. We checked another LML Duramax and at idle #2 was at 18%.After beating our heads against the wall testing thing on this pickup, we decided to replace th... |
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| 1994 Chrysler Town & Country 3.8L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy VIN: 1C4GH54L0R Thank you everyone for the feedback. There were no codes, O2 sensors read .82 and down, TPS was .94 and down at idle. EGR was blocked off according to scanner. Removed EGR valve and found that valve plate was gone! Stem still there so was running full rich. Re... |
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| 2005 Dodge Grand Caravan SE 3.3L No Start VIN: 1D4GP24R35 HI, EVERYONE THANKS A LOT FOR YOUR HELP,AS MOST OF YOU MENTIONED WIGGLE TEST INDICATED PROBLEM WITH FUEL RAIL WIRING HARNESS, WE FIND ONE FROM USED PART PLACES AND GOT THE PROBLEM SOLVED . THANKS A LOT AGAIN. MATT |
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| 2004 Ford F-250 Super Duty XL 6.0L No Start VIN: 1FTNW21P94 Started tearing down the left bank to access ICP and IPR valve, and it was obvious someone had already torn into this motor a few times- bolts half tight or missing, connectors broken, etc. Pulled IPR to looks for signs of catastrophic failure, but could find ... Trouble codes: P132B, P2291 (Icp to low). |
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| 2012 Ford E-250 4.6L security light,odometer VIN: 1FTNE2EW1C Thanks to all for your help. I have a relay buddy that I used for testing the Relays.Will load several times to stress .The PCM underhood relay passed every time. Finally got the relay to fail with aggressive tap testing. Replaced relay and have contacted cus... |
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| 2009 Jeep Grand Cherokee Laredo 3.7L LR Sensor VIN: 1J8GR48KX9 Not fixed yet. Customer leaving the vehicle on Sept 5th. There were a lot of comments about the tone ring. Can that can be intermittent as a hard part? I will lab scope both rear sensors as suggested if I can get the left rear sensor I replaced to drop out aga... |
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| 2003 Lincoln LS 3.9L 3-4 shift VIN: 1LNHM87A53 I've got to close this because I'm running out of time on this post. The trans shop has gone back thru this unit and has ordered a new pcm for me to put in and program. It will be middle of next week before they get and install the new pcm. As soon as we do I ... |
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| 2001 Mazda MPV DX 2.5L MIL Lamp on VIN: JM3LW28Y01 Hello All. Thanks for the tips. I ended up replacing the upper and lower intake gaskets. Despite no signs of a leak when smoke testing and testing with the Bullseye CO2 system the gaskets appeared to have been the problem. I was hesitant because the upper ... Trouble codes: P1170, P1173, P0171. |
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| 1986 Mercedes-Benz 560SL 5.6L Compressor VIN: WDBBA48D0G Problem was wiring diagram, pin 10 is a ground not power as shown!!! I never did find correct diagram for this exact car? Thanks Alain and Terry [...] took your advice and just applied ground and all is good. Vehicle does need new push button unit and pressure swi... |
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| 2006 Mercedes-Benz ML500 5.0L No Start VIN: 4JGBB75E26 Thank you to all that helped with this and especially to Steve [...] for emailing me the TSBs that covered this. I ended up repairing the old fuse box instead of replacing it. The new fuse box looked far too different as far as the relays and fuses for ... |
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| 2007 Mercedes-Benz GL450 4.6L Starting VIN: 4JGBF71E57 THIS VEHICLE IS FIXED. REMOVE PASSENGER FRONT SEAT, BATTERY, AND S.A.M. ( SIGNAL AQUISITION MODULE) . OPEN S.A.M. CASE AND FOUND CORROSION ON CIRCUIT BOARD. REPLACE S.A.M. MODULE WITH NUMBER 5 NEW IMPROVE UPDATE MODULE ( HOW SAD !!!) PART# [...] COST 556.... |
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| 2014 Smart Fortwo Passion 1.0L cooling fan VIN: WMEEJ3BA8E thanks for the replies folks. turns out it needs a new electric fan module. it's getting power at the plug but it's not blowing. Replaced the fan and all is well. thanks |
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| 2009 Toyota Camry XLE 2.4L 1-2 shift VIN: 4T4BE46K39 Fix for this was either getting the knock sensor fixed or getting the check engine light off, I'm not sure if any code will cause this type of default shifting pattern or specific codes only but once the knock code was repaired it went back to selecting second... |
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