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Prev Professional Automotive Repair Technical Discussions for July 27, 2012
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2007 Acura TSX 2.4L A/C compressor VIN: JH4CL95937
We have a very intermittent A/C problem. A/C goes hot while driving. When we stop, it restarts before we can get to the compressor to check for power. It was doing the same when we had the B2131 code for the temp probe which we replaced. Test drove and worked ...
2004 Audi Allroad Quattro 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WA1YL64BX4
Got this one Audi that has a dead misfire on Cylinder 1 and Misfires on cylinder 2 on cold start. Checked compression, 185-190 psi across the board. Ran fuel system cleaner through. Swapped plugs, coils, injectors, does not change cylinder. Checked for injecto... Trouble codes: P1130 (Bank 2 Mixture adaptation system too lean), P0300 (Random/Multiple Misfire), P0301 (Misfire Cyl 1), P0302 (Misfire Cyl 2), P1127 (Bank 1 Mixture adaptation system too rich)
1999 BMW 323i 2.5L Hesitation, Surge, Cuts out, MIL Lamp on VIN: WBAAM3336X
the car came with misfire and acceleration problems , we take care of the misfire , and also we change the throttle body because the other was with signs of damage , and also we change the camshaft position sensor [ exhaust] we did the throttle body relearn , ... Trouble codes: 169 (throttle valve system switched off), 19 (vanos exhaust solenoid circuit), 68 (tank venting valve), 11 (radiator temp. sensor)
2000 BMW 540i 4.4L navigation systyem , Battery Drain VIN: WBADN6349Y
Here in the shop battery works fine, but I notice the navigation system screen in center of dash only shows few white line, sometime navigation module in the trunk stays on after i remove the igntion key ,some time if let the car set for few hours and I open t...
2002 BMW X5 3.0i 3.0L No Start, Poor Idle Quality VIN: 5UXFA53532
I have a question about fuel transfer in the fuel tank of this X5 3.0. It came in as a vehicle that either ran really bad or did not start at all, depending on its mood that day. The air boot was torn, so we replaced it. The car actually ran worse after that. ... Trouble codes: P1083 (System lean bank 1), P1085 (System lean bank 2), P0171 (System lean bank 1), P0174 (System lean bank 2), P0300 (Random multiple misfire)
2006 BMW 530xi 3.0L Downshift Into First At Stops VIN: WBANF73596
Sorry i do not have much experience with bmw transmissions. There are no codes and the fluid is full. I have checked for bulletins (none found), and checked the fix data base, but came up with nothing. I am not sure what else to check, have limited scan tool c...
2004 Buick LeSabre Limited 3.8L Poor Idle Quality, Cuts out, Stall VIN: 1G4HR54K34
Hello all, this car came in originally with a complaint of not start and stall. I get in the car and I am able to power brake it into the garage but runs terribly, wouldn't take gas. Throw the scanner on it check for codes, had the p0101 MAF code. Looking at d... Trouble codes: P0101, B1327
2010 Buick LaCrosse CXL 3.0L Sun Shade VIN: 1G4GC5EGXA
Sunroof shade does not close all the way. It needs to travel another inch to be completely closed. We have tried the initialization/teach process for both the sunroof and the sunshade and it still doesn't close. Sunroof works fine. We also removed the sunroof ...
1955 Chevrolet Bel Air 3.8L Starting VIN: C55T186464
This car will start and shut right off as soon as you let key back.There is no power to ign coil on run position.The power comes from key switch to resistor then back through key switch and out to ign coil as near as i can tell without striping complete harnes...
1991 Chevrolet Cavalier RS 3.1L Poor Idle Quality VIN: 1G1JC84T2M
I have the nice old cavalier here. Has a rough idle, smells like its runing rich. Has no codes in it. Pulled a plug looks pretty black but fairly recent change. Watching pid data, o2 switchs, verified coolant temp sensor is correct. Can't see any fuel trim pid...
1998 Chevrolet Express 3500 5.7L compressor VIN: 1GCHG35R3W
Out of my comfort zone here as I do mostly European makes. Customer concern is that the A/C started blowing warm after roughly an hour of driving. He arrived at his destination and left it idling for 15-20 minutes and when he returned it was blowing cold again...
2000 Chevrolet Tracker 2.0L Drl VIN: 1CNBJ18C7Y
I have a 00 chevy tracker that won't start until the drl comes on.have checked all fuses as well as codes-no check engine light or codes.condition present hot or cold,rain or shine.if key is on and drl lights up,it will start and run.if let idle and drl shuts ...
2005 Chevrolet Colorado Z85 LS 3.5L ABS system VIN: 1GCCS13655
hi techs. 05 Colorado 3.5L has a front right wheel lock-up we replace the calipers, and b/pads. bleed brake system after all this work we re-test vehicle and notice that the front RT wheel won't turns freely. found abs system code for front right wheel sensor ...
2009 Chevrolet Malibu LTZ 3.6L mode door VIN: 1G1ZK577X9
We need to replace mode door number three.its the one that changes the position of the air current. the actuator comes with a plate attached to it that three arms are supposed to fit into. problem is you cant see them to install them when you get the whole ass...
1998 Chrysler Sebring JXi 2.5L Stall VIN: JC3EL5SH3W
I realize there is several threads in the past regarding this engine and its running issues, especially with the distributor. This one you can start up first thing in the morning, starts fine and will run fine for a minute or so. At a stop sign when you go to ... Trouble codes: P0300, P0301, P0303, P0306
2006 Chrysler PT Cruiser 2.4L AC Clutch VIN: 3A4FY48B26
Friends I don't have power to the AC Clutch. I have 10v to the high and low pressure switch. And the ground is good. The compressor has no power, its ground is good. I have no codes BUT! scan data shows the high pressure at 580#, 5v and the PID for the clutch ...
2007 Dodge Sprinter 2500 3.0L engine VIN: WD0PE74557
This vehicle was towed in as a vehicle that had been running ok, died and presented a large fuel leak. The large fuel leak was a freeze plug that had blown out of the high pressure pump. The pump grenaded internally and apparently overpressurized the low press...
2008 Dodge Ram 2500 Truck SLT 6.7L Steering VIN: 3D7KS26AX8
Please help. This truck came in with the steering wandering all over the road, which it does and is very hard to control at highway speeds (darts left and right). It has new tires, complete new steering linkage, new steering box, new track bar, newer ball join...
2010 Dodge Grand Caravan SE 3.3L A/C refirgerant VIN: 12D8HN44E0
Hey guys i got major headach on my hands here. i have this 2010 dodge caravan that keeps loosing refirgerant overnight. i replaced the rear evap due to spotting and that is good now. i purchased a new electronic leak detector to help with no luck. iv double do...
1998 Ford Ranger Splash 2.5L check gauge light VIN: 1FTYR10C1W
Hello all and thanks in advance for any help I have a 1998 Ford ranger with a 2.5 and a stick that has a "CHECK GAUGE" light coming on when it hits roughly 2200 rpm, any lower the light goes off and any higher the light goes off. The rest of the gauges all rea...
2001 Ford Taurus SE 3.0L Poor Idle Quality VIN: 1FAFP53U81
Idles high. What happens is it idles high at [...] for extended period when started warm. After 20 seconds, idle goes down to 700rpm. Same thing when you rev it in park, idles high then slowly lowers. What i've done; Checked code p1506 pending, not hard an... Trouble codes: P1506
2006 Ford E-450 Super Duty 6.0L solenoid a VIN: 1FDXE45P06
hello, and thanks for any help in advance.inherited this bus from trans shop.came in w/multiple trans codes,and was in "limp" mode. codes were cleared,and the only one to return is p0750, soleniod "a" ckt problem/open ckt.i have checked wiring from pcm to the ...
2010 Ford E-350 Super Duty XL 6.0L Hesitation VIN: 1FDXE4FP1A
thanks for help in advance. just have a pretty simple question relating to the block heater on a 6.0l diesel. this vehicle is an ambulance and runs great except for the first 2 or 3 munutes after initial cold startup. with vehicle plugged in all night it exibi...
1995 Honda Accord LX 2.2L module VIN: 1HGCE1829S
Hi Honda techs, I have a 95' Accord wagon that has the srs light on all the the time. The vehicle has not been in an accident and all the components look to be original. I jumpered the diagnostic connector but did not get any codes. If I unplug the passenge...
1996 Honda Odyssey EX 2.2L Compressor VIN: JHMRA1875T
When we did our diagnosis, all relays are working, the ECM is grounding properly. Diagnosis leads to the thermostat. When you ground the Blue/Red wire @ the thermostat, no condenser fans or compressor engagement. Tells us that the thermostat is bad. Install a ...
2005 Hyundai Tucson GLS 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: KM8JN12D35
This one will not go away, tech replaced the timing belt and spark plugs and then noticed a rough idle- rechecked the timing belt which was correctly timed. Number 3 cylinder was found to have low compression at 40 pounds and a high leak down out the intake. T... Trouble codes: P0303 (Cylinder 3 misfire)
1999 Isuzu N NPR 5.7L Cooling Systems VIN: 4KLC4B1R7X
Hello everyone I hope you are having a good week. This vehicle came with blown head gaskets the heads were cracked we put rebuilt heads. Note: customer blew head gasket 3 years ago also. The problem: after driving at 65MPH for over 15 minutes straight the temp...
2001 Jeep Grand Cherokee Limited 4.7L Air Temp From Vents VIN: 1J4GW58N21
See above.
2008 Jeep Patriot Sport 2.4L Water Leak VIN: 1J8FT28WX8
Customer Complain everytime it rain the driver side & the left rear floor get soaked with water, we checked all doors & molding , all good & they are seal tight, check the a/c & heater box for drain all good, checked under the wipers by the winshield all clean...
1996 Lexus ES300 3.0L unknowm VIN: JT8BF12G6T
the engine periodicly o'heats at idle. can run at idle for over an hour with no problem then suddenly starts to get hot. does not o'heat while driving. this car has the hydralic cooling fan which is operating. fan speed increases with rpm. I have done chemical...
2001 Lincoln LS 3.0L passenger side rear door VIN: 1LNHM86S11
just had this car brought to me (i normally don't work on cars). Problem is the door latch, or cable is broke on the passenger side rear door, and I cannot open it. Is there a way to remove the panel with the door closed? Or another way to open it (i,e sacrifi...
2005 Lincoln Town Car Signature 4.6L System Pressure VIN: 1LNHM81W85
Fellas I almost hate to post this, but I'm missing something here. Father in-laws car. I have been over this thing with a fine-toothed-comb several times and cannot find a dye trace or sniff out a leak. Every connection, switch, line, component, etc. System on...
1997 Mercedes-Benz E420 4.2L Poor Idle Quality VIN: WDBJF72F1V
Vehicle came in with a poor idle. Off idle, vehicle runs fine. Problem feels like a vacuum leak, but all scan data is normal. Fuel trims are at -1 to -3 percent. Smoked tested intake system and found no leaks. Found service bulletin about electronic throttle b...
2005 Mercedes-Benz CLK500 5.0L EIS is not unlock VIN: WDBTK75J55
Hi MB Gurus, We really need help here,after order new key,EIS & ESL key still not turn. We did double check the VIN of all parts. Die orange key did downloaded the DAS data correctly. The red LED stays on for 8 sec. then went out. The only one thing we've note...
2001 Mitsubishi Montero Limited 3.5L Cooling Systems VIN: JA4MW51R61
This vehicle heats up very quickly and moves fairly quickly to peg the temp gauge after a few minutes. I know these vehicles have a problem with temp gauge, but it seems it is overheating based on what the scanner reads and very little flow if any through the ...
1992 Plymouth Laser RS 2.0L starter VIN: 11P3S44U6N
This may be one for the books, Customer called said car will not start. I went over to house and i found that the starter was engaging but not catching the flywheel. I removed the starter and tested it, it tested good the starter was brand new I then returned ...
1995 Porsche 928 GTS 5.4L ignition VIN: WP0JB092HS
intake was resealed two months ago ,, car ran fine ,, returned for clutch master cylinder and cranked for a long duration and then started finally got caught up in shop to get this in and was cranking with tach bouncing but no start ,, finally started and dr...
2004 Porsche 911 Carrera 3.6L engine misfire p0304 cyl #4 misfire
the car runs fine at times,after driving for awhile you can play with the throttle and get the car to misfire.check engine light will flash.back off of the throttle and the car smooths out and the check engine light is on but not flashing.the fault code is p03...
2005 Porsche 911 Carrera 3.6L Cel VIN: WP0AA29905
Hi guys,This 997 carrera came in with cat efficiency codes on both banks so i replaced the cats with aftermarket stainless units.This was when the O2 sensor aging (P0159 and P0139)came up.Since my Launch scanner wont read live data from the DME I replaced the ...
2005 Scion xB 1.5L compressor VIN: JTLKT32495
Customer complained that at times, after driving 45 mph, the AC stops blowing cold air. On a test drive on 105 degree day, it worked fine, but suddenly it quit blowing cold, reached 119 degrees center vent. then, we checked pressures, something around 125psi o...
2001 Toyota MR2 Spyder 1.8L cylinders 2 &3
Vehicle came into the parking lot & died. We checked codes/ data & found a defective coil. Replaced & was running fine, road tested & vehicle begain to smoke badly & had lack of power issue. Found clogged cat on bank 2 [of a 4cyl motor] which was cyls 2/3. Rep...
2006 Volkswagen Jetta TDI 1.9L Abs VIN: 3VWDT81K46
Hi VW Gurus and fellows, car came in for permanent running aux. fan and draw completely the battery and may caused also the short to ABS/ESP module. We diagnose with burned integrated aux. fan module n and replace it. Fan is running correctly as it was designe...
2004 Volvo S60 2.5T 2.5L Surge, Cuts out, MIL Lamp on VIN: YV1RS59V94
Vehicle towed in with description of no acceleration pedal response and shut off completely while driving freeway. Pull those 2 code 982A and 984A ECM internal fault, then starts fine, erased codes and testdrove 3 days, no symptom no issue, today while testdri... Trouble codes: ECM98, ECM98

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 Audi A6 Quattro 3.0L power steering VIN: WAULT64B43
Thanks again guys! The system just had trapped air- we replaced all the pinch clamps on the suction side and followed Audis' bleed procedure and finally got it! Greg and crew
2003 Buick Park Avenue 3.8L air blend doors VIN: 1G4CW54K03
turns out the system needs to reset itself back to original settings to do this you remove fuse to reset system and retest all doors to confirm repair all good now
1972 Chevrolet Corvette 7.4L Unknown VIN: 1Z67W2S508
Wow, a lot of guys out there know there stuff on a/c systems! We ended up draining the compressor oil, adding 6 ounces of PAG, installed conversion port fittings, and charged with a total of 2.15 lbs of R134a. It blows so cold it turns the return line [...] ...
2003 Chevrolet Express 3500 6.0L fuse# 23 VIN: 1GBHG31U83
2010 Chevrolet HHR LT Panel 2.2L No Start VIN: 3GNBABDB6A
Thanks again for all the replies. After further testing I found that the reason the codes were being set for no communication with the ABS and SIR modules was not due to a problem on the high speed lan like I thought. The body control module is the gateway for... Trouble codes: B1370 (SDM Modul Device Ignition 1), B0090 (SDM Rollover Sensor), B0081 (SDM Passenger Presence System), U2108 (Lost communication with ABS Module).
2005 Chrysler Crossfire 3.2L Stall VIN: 1C3AN65LX5
Well I'm calling it fixed- until the next time. I have read some Crossfire owners carry a spare CKP due to the unresolved frequencey of stalling. To answer some questions- my lab scope was in for repairs- both my VERUS and Vantage (yea Snappy) and I was trying... Trouble codes: P0335 (CKP Circuit).
1996 Dodge Dakota 3.9L Misfire VIN: 1B7GL23X3T
Well when i pulled the fuel rail and started pulling injectors out, i started looking in the top of the injectors and was finding black crap in top of the injectors, Dont now what it was boss thinks filter media but filter is on bottom of fuel pump module dont... Trouble codes: P0300 (Random misfire), P0301 (Misfire 1 cyl), P0305 (Misfire 5 cyl).
1994 Ford Ranger STX 3.0L No Start VIN: 1FTCR15U4R
Not having the PIP signal should have been enough for me to pull the trigger on this distributor but I wanted to check all possibilities first. I installed a distributor in this truck this morning and the PIP signal returned. This truck came to me with a re...
2007 Ford Edge SEL 3.5L ABS/Brakes VIN: 2FMDK39CX7
The tip from Patrick about pressure bleeding and pumping the pedal with pressure on the system was the winning tip! Thanks VERY much! We did finally get the last of the air out from the right rear, and now have a good pedal!
2007 Ford Fusion SEL 3.0L Hesitation, Stall VIN: 3FAHP02107
thanks to all who suggested timming chain bank 2 timming had jumped 2 teeth never would have believed it with the compression readings ,realy appreciate everyone who took interest and replied ps this thing is a bear to teardown chris Trouble codes: P2273.
2011 Ford F-250 Super Duty XL 6.2L Mechanical VIN: 1FT7X2B63B
Customer installed a k&n air filter in the spring, this truck sees 3000 miles of dirt roads every two weeks. The intake was full of dust and dust deposits after the air filter! Looks like oil must be getting past rings, just suprised with that much consumpti...
2003 GMC Savana 2500 5.3L Misfire VIN: 1GTFG29TX3
The intake manifold did have a slight twist to it. Customer refused to buy new manifold. We reassembled with felpro 'saver' gasket set. These gaskets have oversized sealing surfaces. Van ran well for 1 week then same problem. He has decided to trade it in as i... Trouble codes: P0300 (random cyl missfire).
2003 GMC Safari 4.3L Front evaporator VIN: 1GKDM19X33
We evacuated the system and recharged with a half pound less R134 than recommended, and gained about 10 degrees cooling. We then insulated around the accumulator, lines and the evaporator housing which gained additional cooling. This one is still a puzzler, bu...
1988 Honda CRX Si 1.6L No oil pressure VIN: JHMED9365J
He there. Thanks to those that helped. I recieved several responses about plugged pickups etc. I lowered the pan and the engine was pretty clean except there was no doubt it was pretty beat up inside. Very metallic in the oil and bits of bearing material. ...
2004 Hyundai Sonata 2.4L Park lights VIN: KMHWF25S94
Hello everyone and thanks for the help. This customer wanted to invest little money into this junker so we did some rewiring under the dash. We put in a relay, grounded by the headlamp switch which closed to send voltage down the 4 individual wires to each p...
2003 Infiniti FX35 3.5L bcm VIN: JNRAS08W43
well after talking to the customer some more we discovered that they had a complaint of the windows rolling down by them selves. putting all the piceses together (doors unlocking and locking int. windows rolling down) and this vehicle has a feture that if you ...
2003 Land Rover Range Rover HSE 4.4L ride height control VIN: SALMB11453
off to the dealer for this one. I know there are easier cars to work on, but we specialize in euro cars and try to fix them all. Ill update if we learn what the repair was.
1993 Lexus ES300 3.0L first gear VIN: JT8VK13TXP
thank you for your help. with the help of your replies i checked the resistance at the ecm the resistance at the ecm to body ground was at 14.5 ohms. then i checked the wiring and applying voltage to circuit was able to activate the solenoid. the ecm is su...
2007 Lexus GS350 3.5L Throttle inop VIN: JTHBE96S27
This vehicle did pop both the main modular style fuse and the fuse for the throttle control the throttle control required reprogramming also so we took to the dealer for reflash worked perfectly THANKS TO ALL WHO TOOK TIME TO REPLY YOU KEEP THIS OLD GUY INFOR... Trouble codes: C1201, P0504 (A and b switch correlation), P2118 (Throttle actuator motor correlation perf).
2008 Lexus RX400h 3.3L abs VIN: JTJHW31U78
2005 Mazda 3 S 2.3L MIL Lamp on VIN: JM1BK34375
Thank you for the help. After extensive testing for air leaks. I kept coming back to defective maf. Replaced it again, and load pid reached up into the 80's and the air flow got up to 122. Was a brand new oem maf. Just my luck defective part caused hours of ch... Trouble codes: P2177 (Lean at idle), P2187 (Lean off idle).
2005 Mercedes-Benz CLK320 3.2L Unknown VIN: WDBTK65G45
It turns out that the Modis software has a problem. With the Modis the High side pressure read 319 psi, and my gauges read 159 psi, the duty cycle for the compressor read zero no matter what the refrigeration was doing. I attacehed my Launch and I had 159 psi...
2000 Nissan Maxima GLE 3.0L Poor Idle Quality, Stall, MIL Lamp on VIN: JN1CA31D5Y
thanks for your gays help. problem was solved with replace idle control and throttle body assembly. Trouble codes: P0050, P0740.
2003 Nissan Pathfinder SE 3.5L cluster lighting VIN: JN8DR09YX3
You hit it! bad reostat The lighting for the hvac was just givin me a hard time. Glad I asked. saved me some headaches for sure.
2003 Nissan Pathfinder SE 3.5L No Start, Stall, MIL Lamp on VIN: JN8DR09Y73
Installing a new sensor from NISSAN was the fix. The sensor from Orielly was an exact match, manufacturer markings and all. I have had precisely this same problem with another Nissan. The sensors are made by the same manufacturer as the Nissan sensor, but do n... Trouble codes: P1110 (Bank 1 intake cam advanced.).
1995 Pontiac Grand Am GT 3.1L Multiple DTC's VIN: 1G2NW15M0S
Robert was 100 % correct on this found the ERLS fuse blown. Replaced the fuse with a/c off and everything works. As soon as I turned on the a/c blew the fuse guessing my a/c clutch is shorted! Thanks for all the reply's! Trouble codes: 86 (54 -), 54 (99 -), 99 (21 -), 21 (45 -), 45 (44 -), 44.
2005 Pontiac GTO 6.0L Ignition VIN: 6G2VX12U05
Bad PCM internal failure. Not sure how it came about the car was just sitting outside. Maybe internal corrosion. Signal was getting to PCM but not sending signal to fire ignition.
2003 Saturn L300 3.0L MIL Lamp on VIN: 1G8JW54R53
thanks for all the helpful thoughts,but i have still not turned this engine light off.i plan to get a pcm and program and see what happens and then the bcm.thanks again
2002 Volkswagen EuroVan GLS 2.8L ABS and Traction light VIN: WV2KB470X2
Thank you all for the replies. Sorry for the late post the customer has just returned for continued testing. I cleared codes several times and code continued to come back almost instanly driving down the road. I recalibrated the zero mark for the steering angl...
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