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Prev Professional Automotive Repair Technical Discussions for May 1, 2019
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Open Help Requests for All Makes and Models
Help Request Answers
2003 Buick LeSabre Limited 3.8L MIL Lamp on VIN: 1G4HR54K83
I am trying to understand the testing on P1670. ODM 4 has too much voltage on Ign 1. It had me look in data for output drivers and look for fault. it shows fault on purge solenoid. I can unplug purge and code still sets but a purge code seta. I can remove ... Trouble codes: P1670 (Odm)
2008 Chevrolet Express 3500 6.0L MIL Lamp on, VIN: 1GAHG35K58
Needing some help with this one seems pretty simple with the codes but havent got to the bottom of this one yet. So at random this van will show over heat and a/c dissabled. This will happen at start up after sitting all night and will happen while driving... Trouble codes: P0128 (p0700-), P0700 (p2270-), P2270
2015 Chevrolet Silverado 2500 HD LT 6.0L MIL Lamp on VIN: 1GB2CUEG1F
This vehicle set the cam performace fault p0011 when you drive vehicle. There is only 63,805 miles on it.the oil level was low, we changed oil and filter, there is no change. There is no engine noise and the vehicle runs good. The oil gauge reads normal, w... Trouble codes: P0011 (Cam posistion performance)
2001 Dodge Durango R/T 5.9L Blower Motor Resistor VIN: 1B4HS28Z61
This is a weird one. The resister is obviously being taken out by something else on the system but I'm not sure what. The blower motor has power to it in run/start. The HVAC controller grounds the blower motor through the resister. Has anyone run into this...
2007 GMC Sierra 1500 SLE 5.3L backfire VIN: 2GTEK13M97
I'm having problems with my own truck. Very occasional backfire when cold. It will only do it for the first minute or two after start-up. It will backfire 1, 2 or 3 times, then be fine for the rest of the day. It sounds like it's backfiring through the int...
2005 Jeep Liberty Limited 2.8L Excessive Emissions, Cuts out, Stall VIN: 1J8GL58565
I need some assistance. I have this Jeep in the shop and it has an issue under load it will stall suddenly it also has a large amount of black smoke coming from the tailpipe. I have checked for leaks and found none, It appears to have a new fuel filter hou... Trouble codes: P0093 (Large Fuel Leak)
2007 Jeep Grand Cherokee Limited 5.7L starter VIN: 1J8HR58237
Hi guys need your help on this one. Vehicle was brought to me to program new PCM as other shop diagnosed no start condition as computer not supplying ground to starter relay. Programmed computer and vehicle still has no start. When I turn the key I get 1 c...
1998 Mercedes-Benz SL500 5.0L soft top & windows VIN: WDBFA67F5W
I got stuck with this one. Soft top and windows will not operate. When I first got this in the soft was half latched down. I did some checking and found that locking clips for the cylinders were on upside down and were hanging the latches up. after fixing ...
2007 Mercedes-Benz GL450 4.6L air suspension VIN: 4JGBF71E07
hey guys car came in with front end on the ground rear is fine found forty amp fuse for compressor blown replaced fuse started car and now every time compresor comes on car stalls found fuse block melted replace fuse box the stalling is cured but front end...
2011 Mercedes-Benz E350 3.5L Evap Drying Fan VIN: WDDHH8HB6B
Need to check and cut off the evap drying fan as a possible cause of a battery drain..have done this on 221 car but can not find it this early am on this 212 car..can some one head me up as where to find it..
2009 Nissan Quest 3.5L No horsepower VIN: 5N1BV28U39
Vehicle will not accelerate. Max speed 10mph. Slightly improves if injector on time is increased with Modis by 25%. Calculated base injector on time is always higher than actual. (Wot @ 10 mph the base is 9 mSec but inj actual max on time is 8mSec. MAF vol... Trouble codes: P0102 (MAF ... intermittent...and shows 3 g/sec idle), P0726 (Had code a year...trans input shaft speed sensor.)
2013 Nissan Pathfinder S 3.5L fan VIN: 5N1AR2MN9D
this nissan came in with a noise and found the fan was making the noise and vibrating then replaced the fan assembly and a week later the vehicle came back with the fan running all the time with a/c on or off but the fan will turn off when the vehicle is s...
2003 Porsche 911 Carrera 3.6L PSE Exhaust Valves VIN: WP0AA29933
Customers been complaining about the PSE system not turning off when pushing button.Scan module for any codes related to concern but no codes found. Only once was I able to duplicate concern, as i was on a test drive. Once I had the vehicle in the shop sys...
2002 Suzuki Vitara JLS 2.0L Cooling System VIN: 2S3TE52V62
This vehicle came in about a week ago overheating while at cruising speeds. At idle temperature was normal. Found thermostat stuck partially closed. Replaced theromstat. Vehicle now overheats while at idle but when rpm is increased temperature drops immedi...
1999 Toyota 4Runner SR5 3.4L Hesitation, MIL Lamp on VIN: JT3HN86R7X
This one is strange. We work on 200 Toyota a year and cannot figure this one out. Sets p0505 idle air code within 10 seconds of startup. Idle air, maf, o2's, tps, computer and throttle body replaced still nothing. Just off idle has a dead spot and hiccup. ... Trouble codes: P0505 (Idle air control fault)
2012 Toyota Tundra 4.6L No assist VIN: 5TFUM5F12C
Replaced power steering pump with reman aftermarket, flushed all fluid out of rack and cleaned reservoir filter as well. Still had no power steering assist, just figured it was a bad reman pump. Replaced it with a new one from Toyota but still had the same...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2009 BMW 550i 4.8L Hot air when a/c on VIN: WBANW53569
Thank you all for your time to reply and help the problem, especially Steve [...] and Victor. Yes, indeed it's the vent adjusting system, I kind of seeing that before but wasn't paying attention to the + and - sign with adjusting from RED to BLUE. Really ...
2007 Chevrolet Silverado 1500 LTZ 6.0L No Start VIN: 2GCFK13Y17
so its fixed sorry took so long to get back to you. this system runs off the fpcm but also had a relay for the fuel pump. which from what i found was not suppose to be there. so i was looking at the wrong thing. turned out to be the fuel pump module Trouble codes: U0109 (No comm with fuel pump module).
2007 GMC Acadia SLE 3.6L Poor Idle Quality, Poor Idle Quality VIN: 1GKEV13737
Thanks to all that replied, Ken Smith get's the gold star for the day. With the bore scope, we found scoring on the cylinder wall of the #4 cylinder. The customer is going to drive the car for a while, and decide what to do later. Thanks again for all ... Trouble codes: P0300, P0300.
2006 Hyundai Tucson GLS 2.7L Wont shift VIN: KM8JN12D66
Finally fixed this one. Someone mentions the ECM gets its speed signal from RT front wheel speed sensor I check that and it was good couldn't find that info on Alldata. As I said I followed flow chart for DTC and it said replace with known good computer. Later...
2010 Lincoln Navigator L 5.4L ac VIN: 5LMJJ3J53A
sorry that i did not give pressures removed lines from ac condenser flushed entire system evacuated system recharged to spec front now blows 44 degrees rear 46 degrees thank you for the tips,
2012 Mercedes-Benz C250 1.8L extended crank time VIN: WDDGJ4HB9C
Many thanks to all who responded due to their help this was a very straight forward repair. As expected the camshaft adjusters had failed. The cam adjusters were clicking and setting codes P034062 and P036562. We did not need to replace the timing chain simply... Trouble codes: P3406, P3656.
2008 Mitsubishi Lancer GTS 2.0L cranks - no start VIN: JA3AU86UX8
Sorry, I have no solid answer to what happened. It starts and runs no problem, it was the one time thing it seems. Your answers were helpful one camp was leaning to poss. key malfunction, others said evap valve may have stayed open. My local dealer wanted to s...
1993 Plymouth Grand Voyager SE 3.3L ABS Hydraulic unit VIN: 1P4GK44R1P
We replaced the accumulator as suggested. Everything seems to be back to normal Thank You Everyone !
2013 Ram 1500 Tradesman 5.7L Wipers VIN: 1C6RR7FT5D
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