Automotive Technicians Technical Discussion and Fixes for Sep 16, 2014

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	Help Request	Answers
	1999 Audi A6 Quattro 2.8L Booster Vac VIN: WAUBA24B3X This is a good friend's car who has had progressively lower brake power assist over the years. Putting a vacuum gauge tee'd into the booster vacuum line we see that up on starting it only has 7" of vacuum, and until you rev the engine a bit, it doesn't go high...	View
	2009 Audi A3 Quattro 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out VIN: WAUKF78P89 Car towed in with engine light, edc light and smoke and fuel from tailpipe - checked low side fuel pressure ok - pulled spark plugs #3 fuel soaked - check injector ohms 1.7 for all four - It looks obvious as a bad #3 injector, but feel I might be missing somet... Trouble codes: P0302 (p0304-), P0304 (p0303-), P0303 (p0304-), P0304 (p0303-), P2293 (testing and results)	View
	2005 BMW 545i 4.4L MIL Lamp on VIN: WBANB33575 no problems encountered in above repairs other than way too much work.Have swapped cam sensors left and right and eventually installed new oem sensor on bank two.Have swapped vanos solenoids around as well to no avail.Ohmed all wiring back to modules appears g... Trouble codes: 2B65	View
	1989 Buick LeSabre Custom 3.8L Excessive Emissions, Poor Idle Quality, Surge, Cuts out, Stall VIN: 1G4HP54C9K vehicle will run and idle fine when cold once it gets to temp it will start to run rough almost like a very bad skip runs very rich from tail pipe but ecm data shows the o2 to be switching. grounded the ets at ignition module while running to see if it would c...	View
	1992 Chevrolet Blazer Cheyenne 5.7L Hesitation, Cuts out, Stall VIN: 1GNEK18K6N Vehicle came in with a misfire. Vehicle will idle and Rev fine. As soon as tog drop it into gear vehicle will not Rev or pull it's self. Customer has replaced all electrical components under hood. I've checked voltage fuel pressure timing. Everything appears t...	View
	2001 Chevrolet Malibu LS 3.1L No injector pulse VIN: 1G1NE52J01 Customer brought me the car with a complaint that the car would intermittently crank, but not start. Engine started repeatedly the day they brought me the car. I did note that the SEL lamp and Coolant Level lamps were on. Scanned the PCM for fault codes. Multi...	View
	2002 Chevrolet S10 4.3L Misfire, MIL Lamp on car came in bad misfire mil flashing only code was p0300. found worn out plugs,and cap and wire corroded replaced all of them. still had high misfiRE counter on cyl #4 And #6 but not as bad. replaced injectors misfire dropped to none in cyl 6 and very low in c... Trouble codes: P0304	View
	2003 Chevrolet Avalanche 1500 5.3L no start,no charge VIN: 3GNEC13TX3 Customer came in with no start, no charge complaint.Dvom read 11.6 volts running at that time.After customer left, hooked up battery charger and scantool.After some charge time (during witch I booted up the scantool,started some notes,etc.),I started the vehic...	View
	2006 Chevrolet Malibu LT 2.2L noise VIN: 1G1ZT51F46 This has had control arms,stabilizer links new rack and every part you might replace to resolve this. Sounds like the clunk is under the dash or firewall might it be in the colum? Has electronic steering on the column Thanks for any ideas.	View
	2009 Chrysler Aspen Limited 5.7L Misfire VIN: 1A8HW58T49 New plugs, good compression, swapped coils, replaced injector, fuel trim - B1+1%, B2+3%. Have checked intake with smoke and propane and done decarb with BG, latest software installed. Still misses intermittently at idle, otherwise runs great. Any thoughts? Trouble codes: P0307	View
	2004 Dodge Ram 1500 ST 4.7L ignition/no start VIN: 1D7HU18N74 This one I got as a used car trade in, no history. Won't start with key. Pulled battery and charged, and checked fuses in the meantime - found #20 ignition fuse in the IPM replaced with a piece of metal. With good charged battery, no crank. Jumpered starter re...	View
	2009 Dodge Charger SE 5.7L MIL Lamp on VIN: 2B3KA43TX9 Hello everybody, this vehicle came to my shop with a loud noise in the engine, we removed engine and sent it out for repair and when it came back we installed it and it immediately sets trouble code P0016, and after it runs for a short time it will set P0014. ... Trouble codes: P0016 (crankshaft/camshaft timing misalignment B1S1), P0014 (bank 1 camshaft 2 position target performance)	View
	2001 Ford F-250 Super Duty Lariat 5.4L Hesitation, Surge VIN: 1FTNX21L21 idles fine.takes gas fine but in 4th gear you get a surging like its trying to hold back.you can redline the truck in the other 4 gears,4th seems to be the only problem and only on a hill under a slight load.all the sensors seem to be spot on.fuel trims are wi...	View
	2002 Ford E-250 Econoline 5.4L pinging VIN: 1FTNE24L32 Evening Techs This truck pings under load after its hot, so I did the basics- checked to make sure EGR valve was working by applying vac to valve,engine almost stalled. also replaced back pressure sensor because it was out of range. MAF sensor was also replac...	View
	2002 Ford F-250 Super Duty XLT 7.3L No Start VIN: 1FTNX21EX2 Well here we go. I have a 2002 Ford F250 7.3L diesel here at the shop with 233k on the odometer. At fist the truck had issues running rough at start up every once in a while, then sometimes it would start running rough under load to the point where it was un-d... Trouble codes: P1212 (ICP Voltage not at expected level)	View
	2005 Ford F-350 Super Duty King Ranch 6.0L Stall VIN: 1FTWW31P75 This truck came in for a Start/Stall issue. Customer stated that he pulled in his driveway and let the truck run for about 10 minutes while he went in the house. When he came out, the truck had stalled and he couldn't get it running again. It will start with a... Trouble codes: P2284 (ICP circuit range performance), P2285 (ICP circuit low)	View
	2005 Ford E-450 Super Duty 6.0L Charging system VIN: 1FDXE45P05 I have been pulling my hair on this van and am still looking for the solution. I have had these codes: P0623 Generator Lamp Control Circuit P1148 Generator 2 Control Circuit What I know about this system from other information I have found is that the #2 Al...	View
	2005 Ford Ranger Edge 4.0L air bag module VIN: 1FTYR44E25 Long story short replaced airbags and module and get the c1414, basicly not compatible or bad module. B1881 & b 1877 seat belt retensioner open circuit. So I sent the truck to get reprogramed and they tell me the same thing as the codes do. My question is if i...	View
	2007 Ford Fusion SEL 3.0L starting VIN: 3FAHP02177 Hello all, Car came in for no-start. Jumps fine. no sign of draw, battery was low but charged back up OK. Sent it out, back in 2 days, no start, jumps fine. Checked system-no draw. Put car aside for 6 hours, then a draw showed up. pretty significant, unable t...	View
	2007 Ford F-150 XLT 5.4L starter VIN: 1FTPX14V27 Hello fellow Techs, This truck came in with a starter condition that when cranking, would make a "grinding" noise. I performed a voltage drop test on the battery and starter with good condition results. Very low voltage drop, (0.07) while cranking. I also ran ...	View
	2010 GMC Terrain SLT 2.4L Poor Idle Quality, Surge VIN: 2CTALFEW7A thanks for the help, this gmc terrain 2.4 has a high extended idle. it will idle down after 15-20 seconds. at park, if you goose it the idle goes to 2500-3000 rpms and slowly goes to normal idle. when you drive the car it will surge on deceleration to a stop.(...	View
	2002 Honda CR-V LX 2.4L MIL Lamp on VIN: JHLRD784X2 I got this Honda in and scanned it to find a p1457 code.I went through the flow chart and found a leak at the canister so I replaced it and the vent valve because I couldn't remove it because the screw were rusted to almost to nothing.Now 2 days goes by and th... Trouble codes: P1457	View
	2007 Honda Odyssey LX 3.5L steering angle sensor VIN: 5FNRL382X7 i am getting code 27-1 steering angle sensor failure. i replaced the sensor and did the calibration and all seemed fine, but within a week the customer called saying light is on again. tested and still getting code 27. i have checked all the wiring between the...	View
	2008 Honda Civic Si 2.0L MIL Lamp on VIN: 2HGFG21538 Multiple codes 16-17 RR wheel speed malfunction, 18-17, left rear malfunction, 61-1 modulator control unit low voltage, 61-1 ECM / PCM related failure, 86-1 can bus system failure. These are in the ABS/VSA system. P0123 (7-2), P0223 (7-6) are in the PCM. I s... Trouble codes: P0123 (Tps), P0223 (Tps)	View
	2009 Hyundai Genesis 3.8 3.8L brake lamps inop VIN: KMHGC46E99 The customer presents with what should be an easy problem to diagnose. He has no brake lamps. I print wiring diagrams from all data and my first course of action would be to go to the stop lamp relay and test inputs. All the pictures and all the information I ...	View
	1997 Jeep Wrangler Sport 4.0L engine VIN: 1J4FY19S7V we received this jeep second hand due to previous tech could not diagnose, now I know why. this thing will run up to 244 deg on a 77 deg day with ac on when at 65 mph or higher, idles all day long at 201 deg with ac on and 196 deg with ac off, no debri in cond...	View
	2007 Jeep Grand Cherokee Laredo 3.7L Misfire VIN: 1J8GR48KX7 Vehicle came in form another shop for random misfire. I could not ever get it misfire when hot so customer left and I drove the vehicle home. The next morning it started up fine, I backed out of the driveway, (about 10 seconds) and it started misfiring really ... Trouble codes: P0300 (Random misfire)	View
	2008 Jeep Wrangler X 3.8L a/c compressor, engine cooling fan VIN: 1J4FZ24118 received a jeep with no a/c compressor clutch engagement as well as no cooling fan operation. found that the vehicle had a small fire, harness' melting, and ruined the fan. replace fan assm. from oem and its harness. then replaced the pdc. after replacement of...	View
	2008 Jeep Wrangler X 3.8L a/c compressor, engine cooling fan VIN: 1J4FZ24118 thank you in advance for your time. we received a mail jeep, right hand steer from a customer with no a/c compressor engagement, no cooling fan operation. she also advised that she ran hot on the side of the road and had someone rig the fan. the vehicle caught...	View
	1973 Mercedes-Benz 220D 2.2L No Start VIN: 1151101035 Hello all, looking for some help on this Mercedes diesel. The customer replaced the injection pump and did not time the pump. The vehicle does start but runs very poor. I know the pump is out of time and I am having a hard time timing the pump. I have read the...	View
	2005 Mercedes-Benz C230 Kompressor 1.8L Check Engine Light VIN: WDBRF40J75 Car came in with no check engine light. I pulled the cluster and couldn't see any bulbs so I re-installed it and hooked up my scanner, (which I should have done in the first place) and commanded the Cluster lights to come on. They all work including the MIL bu...	View
	2006 Mercedes-Benz CLS500 5.0L Poor Idle Quality, Surge, MIL Lamp on VIN: WDDDJ75X76 Need help from you MB gurus: this CLS500 will set these O2 slow response codes after 2 trips. I've replaced both upstream O2 sensors with Bosch OE connector parts and both codes returned. Data stream shows both banks STFT between 0 and -5 and LTFT between -10 ... Trouble codes: P200D, P2080 (P0153 left O2 sensor upstream of TWC slow response)	View
	2010 Mercedes-Benz Sprinter 2500 3.0L Hesitation VIN: WDZPE8CC7A This is a long wheel base 12 passenger Sprinter 2500 (906735) with a 642.898 V6 diesel CDI. At first visit we did very extensive repair due to exhaust leak that creamated intake manifolds and stepper motor (unbelieveable mess!). Vehicle has since run well but ...	View
	2004 Pontiac Grand Prix GT2 3.8L Cooling Systems VIN: 2G2WS52264 Customer brought car to shop with overheating problem. Per them it has been a long running issue. They had removed thermostat. We replace thermostat and radiator as old radiator very rusty bled system, let run in shop for about an hour and test drove on inters...	View
	2008 Pontiac G6 2.4L starter operation VIN: 1G2ZG57B28 thanks in advance, this vehicle was brought in with owner complaint of no guages while driving down the road. all guages were inoperative with no lights in dash. when customer dropped vehicle off he said that the problem started the day before when his wife c...	View
	2011 Ram 2500 Laramie 6.7L Turn signal VIN: 3D7UT2CL1B Here is a unique inquiry for you Ram guys. I have customer with a 2011 Ram. He installed aftermarket tow mirrors that include an integrated turn signal. The original mirror did not have this option but it is an available option on the vehicle. The customer adv...	View
	2000 Toyota Solara SE 3.0L Po773 VIN: 2T1CF28P0Y Greetings form Seattle (Go Hawks!) Powertrain sets a code PO773 - shift solenoid E electrical malfunction. This solenoid we have learned is also called the SL solenoid or lock-up solenoid. It is buried on top of the valve body. We tested the solenoid resistanc...	View
	2008 Volkswagen Beetle S 2.5L air bag VIN: 3VWPW31C38 on my ross tech I have a 01587 code cant find anywhere in my info anyone know what the code I think its clock spring but not positive.	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1995 Audi S6 2.2L Engine VIN: WAULA84AXS Tried to view Cr signal with scope and no signal was produced. Decided to view flywheel trigger points by removing starter and turning engine over by hand. Turns out a bolt had backed out of the rear main seal flange and wiped out the Trigger tab. Welded th...	8
	2002 Chevrolet Silverado 3500 6.6L oil gauge VIN: 1GCJC33152 THIS ONE SEEMS TO BE SATISFACTORILY FIXED. I'LL START BY ADDING THAT WE DID USE 15W40 MOTOR OIL AND THE CUSTOMER COMPLAINED THAT THIS WASN'T ALWAYS LIKE THIS. THE MAIN COMPLAINT WAS HIGH OIL PRESSURE EVEN WHEN THE ENGINE WAS HOT. WE FINALIZED THE REPAIR BY REM...	9
	2004 Chevrolet Suburban 1500 LS 5.3L Low Power VIN: 3GNFK16Z24 Well this was crazy. I put this back together without finding any thing. So just as a try I disconnected the Fuel Comp even though it was reading 9%. Well it ran better. However it still was not like the truck I remembered. Well my kids got in trouble last Fri...	19
	2006 Chevrolet Tahoe Z71 5.3L Fuel Gauge VIN: 1GNEK13Z16 Well we fixed the gauge and the customer is finally happy. Sorry for the long delay but the customer took the truck back until we got a pigtail and did some research! The new pump didn't come with the level sensor or pigtail as commonly seen. We tried the pigt...	10
	2003 Chrysler PT Cruiser GT 2.4L check engine light VIN: 3C8FY78G83 Thank for the assistance found corrosion under battery box . Repaired wires and let customer drive don't know if that takes car of it like I said it can go 2 weeks before it happens again. Sorry Kevin if you think the post is lazy I was able to get the codes r...	10
	2004 Dodge Neon SXT 2.0L 2-4 Shift VIN: 1B3ES56C94 Thanks to all that replied. After hours of going over the schematics and diagnostic procedures, nothing made since or added up. I kept viewing the scan tool data. When I cleared the code, the car would go into first gear and stall. So I kept viewing the data u...	8
	1995 Ford E-150 Econoline Club Wagon Chateau 5.8L rear ac VIN: 1FMEE11H7S It seems that these vans have a vaccum operated blend door that tends to break. When I informed the owner of this he just laughed and said that he is going to use it as a cargo van and was sure his cargo would not mind not having AC! He was happy with only hav...	10
	2001 GMC W3500 Forward W3S042 5.7L headlights VIN: 4KDB4B1RX1 Thanks to Jose from Florida! He was able to tell me about a hidden fuse block behind dash trim. While that wasn't the problem,it got me into the dash where I located the drl controller.replacing that got the headlights shining again...	2
	1995 Isuzu Rodeo LS 3.2L Electronic VIN: 4S2CK58V2S I wouldn't really call this a fix. it was the electronic therm. I think that what you call it. I couldn't find one so I bypassed it. compressor is controlled by the blower motor switch. customer was ok with it.	7
	1980 Lincoln Mark VI 5.8L No Start VIN: 0Y89G61315 hi! finally got it right, after setting the distributor on #1 and setting the mark on the rotor accordingly, what screwed us up is that the firing order stamped on the manifold is not how you mount the s/plugs wires like a conventional engine, you must follow ...	24
	2004 Mercedes-Benz C240 2.6L limp home mode VIN: WDBRF81J24 customer has decided to try a used trans control module. will post update as we find out more Josh	9
	2000 Nissan Altima GLE 2.4L a/c evap VIN: 1N4DL01D0Y found the pcm was bad, the pcm controls comp clutch conrol, pcm had all the correct inputs but would not shut compressor off when low side went below 20 psi thanks for all the help	6
	2002 Saab 9-5 Arc 3.0L engine VIN: YS3ED49Z72 owner got 2 more ignition coil units- tried them- still runs bad I spent too much time on this already and decided to ship it - NOT fixed.	8
	2005 Saab 9-3 Arc 2.0L Starting VIN: YS3FD79Y35 So, the problem with this vehicle was in the wiring harness. The repair was to locate the wire (bu) in the harness below the battery box that comes from the ignition sw term 3. Note: There are 4 identical blue wires in this harness. We cut the wire at that po...	8
	2002 Suzuki Vitara JLX 2.0L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 2S3TD52V62 Base timing was adjusted to its maximum to offset for timing chain wear. Thank you for all the TECHNICIANS that took the time to read the description and proved valid input. I have been in the industry for over 18 years and a member of IATN for a very long tim... Trouble codes: P0300 (Random misfire).	8
	1994 Toyota Pickup DLX 2.4L Oil Pump VIN: 4TARN01P0R Well all, I got several good replies. We ended up tearing this engine down a total of 3 times completely (overhaul) and an additional two without removing the head (pan and front cover). Here is a composite list of what had been checked: Oil Pan: there are n...	16
	2000 Toyota Corolla VE 1.8L MIL Lamp on VIN: 1NXBR12E0Y Hello my fellow iatn members, finally, after 30 responses from a very supportive techs, we decided to replace the injectors with a new set. after spending 100.00 bucks at the laboratory for injectors clean up, the toy. was still running lean and losing po... Trouble codes: P0171.	30
	2007 Toyota Sequoia Limited 4.7L Driveline noise VIN: 5TDBT48A47 Thank you to all who answered. Special thanks to Dave [...]. Sometimes you can't see the forest through the trees. The left rear wheel bearing was the problem. There was a slight noise in the left...	11
	2001 Volvo V40 1.9L MIL Lamp on VIN: YV1VW29561 the adaptive relearn with the volvo scanner fixed this car, the lt was stuck at 8 before after the relearn it went right to zero, best $55 i have spent in quite a while!! Trouble codes: P0133, ECM28.	7

(Also Available: All, Asian, Chrysler, European, Ford, GM.)