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Prev Professional Automotive Repair Technical Discussions for July 10, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
1999 Audi A4 2.8L system pressures VIN: WAUED28D4X
Specs call for 550gr +50 refrigerant with standard condenser. Nobody has been able to tell me what the +50 stands for. Complete evacuation and recharge with 550gr and still get 65# low side & 450# high side pressures at 2K rpm. Can oil infusing orifice screen ...
2005 Audi A6 Quattro 3.2L Compressor VIN: WAUDG74F75
This vehicle came to us from a used car lot with ac inop. No codes stored in hvac module. Checked voltage at regulator valve and had 12v on hot side and ground on the other. Compressor was not activating. Found a measuring block that showed control unit was se...
2005 Audi A4 1.8L low boost
Hi, I need some help with the Audi 1.8T. It has lack of power and keeps throwing 'boost pressure regulation' control range not reached. I have seen this code many times and fixed them with diverter valves and wastegate control solenoids and other leaks but thi...
2005 BMW 325i 2.5L auxillary cooling fan VIN: WBAET37425
Activating fan on scanner does nothing.The high side ac will go over 400psi. Scoping the control wire at the fan plug I get 13.5 volts with a 2ms square wave ever 8ms.The only time the wave will change is I restart the car then sometimes I will get a wave 8ms ...
2006 BMW 325i 3.0L side view mirrors VIN: WBAVB17526
Need help! the side mirrors on this car are folding in by themselves, and I don't have any clues yet why. And before guessing, I would like to know if somebody out there may have experienced this problem. I would appreciate it if someone could give me a clue t...
2008 BMW 335i 3.0L Code 2A82 VIN: WBAWB73548
Hello everyone and thanks for the input on this one. I have this 2008 BMW 335i coupe in for the check engine light on. THe code is 2A82 for Vanos Inlet. I do not have much experience with this system and frankly do not have alot of knowledge about the VANOS s... Trouble codes: 2A82
1998 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality, Surge, Misfire, MIL Lamp on, fishbite/shudder VIN: 2GCEK19R5W
Hello everyone, i have received this truck after 3 other shops have thrown many parts at it. The spyder has been replaced twice, a full tune up, a new distributor, the trans valve body has been reconditioned for tc shudder. When the tc locks up you get a sligh... Trouble codes: P0300
2001 Chevrolet Silverado 1500 5.3L dlc VIN: 1GCEC19T31
Having trouble communicating with ecu with scanner using launch crp 123 check scanner with other known working truck and no problem with scanner I could go in scan mode and search vehicle through vin# and I coyld communicate with ecu, just want to know if some...
2005 Chevrolet Express 2500 4.8L Misfire VIN: 1GCGG25VX5
No. 6 misfire count is approx 70 on scanner. This is coil near plug set up. Have swapped coil, wire and plug with no. 8 and have also replaced injector with no change. done compression test on 8 and 6 . Both read 125psi. Have hooked up injector noid to harness... Trouble codes: P0300
2008 Chevrolet Uplander LT 3.9L Electronic VIN: 1GNDV33138
hello, got this uplander with codes bo418 bo428 and b3532. complaint was a/c hot on passenger side and rear. replaced control head but still set same codes, you can clear them and as soon as you would operate passenger side temp dial the codes reset. I removed...
2000 Chrysler Sebring JXi 2.5L Misfire, Chug/Bucks VIN: 3C3EL55H5Y
This car originally came in 2 weeks ago with occasional no-start. We checked, had no codes, then finally duplicated no-start. Had no spark. Replace distributor & crank sensor - with new aftermarket units. Car started, ran fine for us & customer for 1 week. C... Trouble codes: P1391 (Intermittent loss of cam/crank signal)
2003 Dodge Grand Caravan SE 3.3L Surge, Cuts out, Stall VIN: 2D4GP24363
Vehicle came in with cutting out symptom and ck eng lt on. Scan found 1391. Ckd circuits and found power wire to CMP cut and wires twisted together. Repaired wire, recheck, still had code. Scope saw some flaws, replaced sensor, recheck and code came back. I ch... Trouble codes: P1391 (Intermittent loss of CMP or CKP)
2003 Dodge Ram 3500 5.9L all lights and gauges VIN: 3D7MU48C03
The cluster in this Dodge starts dancing and flashing as soon as you unlock the door, most of the time. It will eventually shut down after about 15 minutes, according to the owner. I haven't been patient enough to let it go to sleep. The cluster does not respo...
1995 Ford Thunderbird LX 3.8L Charging VIN: 1FALP6249S
When this T bird came in, we did a couple of quick tests and found it was overcharging 17/19 volts.Just to be sure, we tested the battery and passes a load test easily. So the cust had to return the REMAN alt to O'reilly and we installed. By the way, the wirin...
2000 Ford Focus ZX3 2.0L Headgasket failure VIN: 3FAFP3135Y
I purchased this car for my daughter. She currently owns a 2000 Focus ZX3 which is a good running vehicle but the frame has become rusty to the point that I would feel best if she no longer drives it. This new vehicle has a very nice frame and body but has a...
2002 Ford F-250 Super Duty Lariat 7.3L Instrument Cluster VIN: 1FTNW21F82
I replaced the hec with a used part with no fix of anything exceot one code cleared. Figured it was a bad used part. I had a guy(electronics guru, brent) come to the shop to check the original cluster. He found multiple issues such as bad relays etc. The clust...
2003 Ford Focus ZX5 2.3L Poor Idle Quality VIN: 3FAFP37Z33
Hi Guys Have a 2003 focus which we just purchased at auction. Mil light is on with code P2274. From what I can see there is only two o2 sensors so I dont know why scanner is showing code for sensor #3. Car idles rough but runs fine above 1500 rpm with no lag o... Trouble codes: P2274
2005 Ford F-250 Super Duty King Ranch 6.0L Hesitation, Surge VIN: 1FTSW21P55
Thank you for your time. I am a GM diesel tech trying to diagnose my sisters Ford with no computer diagnostics. She just bought this truck and it seemed OK until she tried pulling a camper. It's always been a bit sluggish for the first mile or two, not smoking...
2006 Ford Explorer XLT 4.0L dashboard VIN: 1FMEU73E76
We are having an issue with the oil change reminder reset on this Explorer. We reset the oil life indicator to 100% and still get the "oil Change Required " notice on the dash. We have an IDS but there does not seem to be a "back door " to do a reset. There ar...
2010 Ford E-350 Super Duty 6.8L No Start VIN: 1FDWE3FS8A
Calling Ford techs. This motorhome was towed here. It quit while driving. It seems like it would be under warranty, but customer requests we try to fix it. Initially it would start and immediately die. Figured out that the fuel pump only ran for a couple secon...
2008 GMC Yukon Denali 6.2L running board VIN: 1GKFK63828
This truck came in with the passenger side running board stuck in the extended position. Test voltage at the 6 pin connector at the motor, 10.5 volts in both commanded positions, but the board stays extended. Replaced the motor and lubed all hinges, relearned ...
2005 Hyundai Santa Fe GLS 3.5L Poor Idle Quality VIN: KM8SC13E65
Came in for timing belt and spark plugs. No issue before service. After new belt and new plugs, does not want to idle. Clean throttle body as it seems sticking a little and getting better but still dies out sometimes. Idle around 899 and seems high end. What d...
2013 Land Rover LR4 HSE 5.0L Brake Pad Warning Light VIN: SALAG2D4XD
Replaced pads rotors and sensors dash warning says brake pads worn out will not reset . Any Help is appreciated Looked all through Alldata and was no help at all ! I can't find any thing or any way for reseting . Thanks In Advance ~!
2001 Lincoln LS 3.9L L/R door lock and window motor VIN: 1LNHM87A71
Customer says door wont open and window inop on L/R door. You can here the lock working on that door. I got the door panel off and looked at the lock assembly and it has a electrical plug and a cable from the inside door handle. The question is, how do I get ...
2005 Mercedes-Benz SL500 5.0L Vario Roof VIN: WDBSK75F95
Hi guys, I have this 2005 SL500 problem was the Vario roof hydraulic pump stopped working and front part of the trunk stayed in open position. As per customer did some research on his computer and decided and figured the Elephant ears flaps had to be pointed d...
2005 Nissan Maxima SL 3.5L No Start VIN: 1N4BA41E75
We are replacing the ecu with a used one and it won't start. I would like to know if it has to be programmed or just getting the nats set up correctly. I get a pin number of 875C6. I believe that number has to be converted to a 4 digit number. I hope if I can ... Trouble codes: P1610, P1611
2007 Suzuki XL-7 3.6L steering pump
We have another problem child in the shop. This time a 2007 Suzuki XL7. It came in hard to steer. The pump was making a whining noise and leaking very slightly from the shaft. I replaced the pump and flushed the lines. The old fluid had very small metallic spe...
1997 Toyota Corolla 1.6L low flow VIN: 1NXBA02E0V
Customer complained vehicle's heater does not blow hot. was told by dealership it needs a heater core. we disconnected both heater hoses and run water both ways and flows fine, check heater valve and closes and opens ok. disconected heater hoses from cylinder ...
2004 Volkswagen Touareg V6 3.2L No Start VIN: WVGBC67L04
This v/w when warm or hot this has a very hard start. The cust. had installed his own fuel pump assembly. We have checked the pressures and they are up to factory specs, because it only does it hot we replaced the cranksensor, we also because of the miles repl...
2005 Volkswagen Jetta 2.5 2.5L 2-3 shift VIN: 3VWRG71K05
vehicle diag by vw that trans is bad and needs replacement sometimes slips and hard up and down shifts never service until a month ago it got better and now is worse per customer overhaul trans and r n r the same torque converter. Install rebuild and we have a...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2007 BMW 335i 3.0L Accessories VIN: WBAWB73537
Sorry for taking so long to close this request. terminal 15 wake up(acc)V 0.13, is normal terminal 50E V 0.00, and is normal as well but terminal R is not it suppose to be battery volts 14.5 it was 5.66 volts and I couldn't figure out where is that informa...
1996 Buick Riviera 3.8L Abs/Clust./Audio VIN: 1G4GD2212T
Customer has yet to return. Can inform further apon return
1997 Chevrolet K1500 Cheyenne 5.7L Power/Ground To Ac Relay VIN: 1GCEK19R4V
Thank you very much for all of the helpful hints. After about 2 hours of scouring wiring diagrams to find the path of power and ground flow, I saw that the secondary high pressure cut out in the back of the compressor had no connector on it. The wire was drape...
1997 Chevrolet Lumina 3.1L Poor Idle Quality, Cuts out, Stall VIN: 2G1WL52M2V
I have to apologize for being upset. Service writer had it sold as a head gasket to be done. He got vehicles mixed up and he is a moron. Customer had vehicle towed in due to the running problem. Found out today he had the theft deterrent bypassed and then it w...
2006 Chrysler 300 Touring 3.5L Mechanical VIN: 2C3KA53G86
thx for all the help, but i misinformed you guys cause of what the customer told me, the abs/tone ring was completely missing from the axle and that caused all the trany problems! tone ring which was hard to find and all lights went out and trany like n...
2006 Ford F-150 XLT 5.4L no start VIN: 1FTPW14516
Vehicle is fixed. thanks for all the advice, but Immediately after posting this help request, IATN 'suggested" that I look at some other cases similar to mine. that lead me to look at a few very similar cases and also go back into the wiring diagrams for this...
2011 GMC Yukon XL 1500 SLT 5.3L Misfire VIN: 1GKS2LE35B
thanks for help guys. took vehicle to tranny shop for second opinion and ended up being a torque converter shudder. had me fooled for misfire.
2001 Mercedes-Benz E430 4.3L Starter VIN: WDBJF70J71
1998 Nissan Frontier XE 2.4L Cuts out VIN: 1N6DD26S2W
Sorry for closing this post so late but I was hoping to resolve this problem and ran over. Most replies said the dist was most likely culprit, so we replaced with Hitachi reman but didn't help. I'll keep trying and repost when this one is solved. Thanks for th...
2004 Nissan Murano SL 3.5L Misfire, MIL Lamp on VIN: JN8AZ08WX4
Well I finally figured out the problem with this car, this one was definitely a leaning lesson for me, I have been at this car for just about a week now, and the person that did the plugs in this one had two of the front coils crossed,he had 2,4 mixed up, this... Trouble codes: P0300.
2005 Nissan Quest 3.5L bcm VIN: 5N1BV28U95
Thanks again for the help, the bcm number for the pin code was actually the 97836 number and our diagnostics equipment supply person had a program to help us out. Going to try a cheap program from ebay otherwise I was quoted over $1500 from one source. Still t...
2012 Ram 3500 Laramie 6.7L Mechanical VIN: 3C63D3ML1C
Well guys ,it turns out that no-one has the picture for this except for me now. Because of the conversion from L/H drive to R/H drive the belt tensioner position has been changed to allow room for the steering. We basically played with it until we were able to...
2006 Scion tC 2.4L Cooling fans VIN: JTKDE17716
Ok so as suspected it was a ECM problem. I replaced the computer and did a manual relearn on the key now everything works perfect
2009 Subaru Forester X 2.5L Ac VIN: JF2SH64609
vehicle compresser was coming on for longer periods so customer said that they will leave with it like that so we had to let it go. anyway thanks to all who took time to reply.
1999 Volvo C70 2.4L Drivers window VIN: YV1NC56D7X
Still no fix on this one, replies suggested wiring problems so I removed plug in door jam and inspected, everything was good so I cleaned and reinstalled. tried bypassing signal wires directly to control unit but no help. I'm suspecting bad window control un...
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