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Prev Professional Automotive Repair Technical Discussions for January 27, 2015
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Help Request Answers
2007 BMW X5 3.0si 3.0L no heat, very loud radiator fan on high , overheat VIN: 5UXFE43567
We filled up the radiator with appropriate coolant and purged the system with the electric coolant pump procedure for 12 minutes. We could hear the pump cycling BUT COULDN'T SEE ANY MOVEMENT IN THE COOLANT AT THE FILL POINT. The pump seems to be a big problem ...
2007 Cadillac CTS 3.6L Unknown VIN: 1G6DP57717
crack timing cover the left primary intermediate drive chain sprocket bolt is hitting cover can c what cause to hitting cover
2006 Chevrolet Silverado 2500 HD LS 6.6L Cam, Crank VIN: 1GBHC29DX6
Need help from gm dissel tech's cannot find good cam,crank relation sync wave form need some help with this.this is the (lbz)engne ,found one here at iatn with missing reluctor toth but i will like a known good thanks
2008 Chevrolet Equinox LS 3.4L Ignition VIN: 2CNDL23F98
Customer drove into shop with misfire, said her mechanic up north told her to change the fuel filter. Scanned vehicle, got misfire around 50 MPH on cylinder #6, replaced Coil and test drove vehicle, now I got a misfire code on cylinder #1. Crank and Cam sensor...
2010 Chevrolet Equinox LT 2.4L Stall VIN: 2CNFLEEW1A
Customer complains the vehicle idle drops, the vehicle shakes as this happens, and the engine stalls at a stop sign or red light. We have been unable to duplicate this concern. 500 miles ago, we cleaned the throttle body and performed the idle reset procedure.... Trouble codes: P0506 (Idle lower than expected)
2012 Chevrolet Equinox LS 2.4L No Start, Poor Idle Quality, Stall VIN: 2GNALBEK4C
Mechanical fuel pump will not build pressure. Suspect failed pump, but why? Is there something overlooked when changing the engine? Rear main seal had failed and engine ran out of oil. Did this kill the mechanical pump? Sure hate to replace it and then have th...
2001 Chrysler Sebring LXi 3.0L Check Engine Light VIN: 4C3AG52H01
So i replaced vacuum hose now the egr valve is open all the time has vacuum going thru the egr solinoid i have power on one side and no ground on the other side i am guessing the computer controls the ground right ? but would it be grounding the solinoid at id...
2001 Chrysler PT Cruiser Limited 2.4L timing belt VIN: 3C4FY4BB91
I am in the process of replacing this timing belt...whoa ! This has VERY little room to do it . Do you have ANY tips or suggestions on how to make this job easier ?
2000 Dodge Durango 4.7L MIL Lamp on VIN: 1B4HS28NXY
We have a 2000 Durango in right now for a check engine light. Vehicle had two codes stored, p0135 & p0155. I checked resistance on all 4 sensor heaters and they all measured 13.5 ohms after cold soak. Spec is between 3.5-8.5 according to our Verus. Next, I mea... Trouble codes: P0135, P0155
2000 Dodge Durango 4.7L MIL Lamp on VIN: 1B4HS28NXY
We have a 2000 Durango 4.7L in right now for a check engine light. Vehicle has two codes: p0135 & p0155 (upstream o2 heater failure). I checked resistance on all 4 o2 sensor heaters and they all measured 13.5 ohms after cold soak. Spec is between 4-7 ohms acco... Trouble codes: P0135 (B1s1 o2 sensor heater failure), P0155 (B2s1 o2 sensor heater failure)
2003 Dodge Neon SXT 2.0L Mechanical VIN: 1B3EG56C43
auto towed in has been setting for 3 years. put a fuel pump min it to get it running. also changed oil and rotated engine several times before starting. it started right up and had no engine noise. so customer wanted timing belt pump and ten. done. so I replac...
2008 Dodge Grand Caravan SE 3.3L Pedal hieght VIN: 2D8HN44H88
hello guys i need some help with an 08 grand caravan 4wheel disc brakes the van came to me from a different shop with a brake pedal problem when stopping the van stops and the pedal fades to floor like a bad master cyl.we found front calipers to be leaking and...
1988 Ford F-250 Custom 5.0L No Start, Stall VIN: 1FTEF26N3J
Engine will start some times and have injector pulse (noid light), it will run 3 seconds, injector pulse fades away engine dies then try to restart no injector pulse at all. New distributor with new pickup and ignition module. reman ECM Coil replace 6 months a... Trouble codes: 21 (Ect), 81 (Idle air valve)
1998 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality VIN: 1FMZU34E6W
Ford folks:I have an explorer 4.0 SOHC with a classic upper intake gasket vacuum leak. P0171 & 174 that's not the issue. It also has a very dry rotted air intake tube; no rot holes yet but is not in good shape at all. Hate to ship it like that. The 1998 tube... Trouble codes: P0171 (p0174-), P0174
2005 Ford Escape XLT 3.0L Cuts out VIN: 1FMYU931X5
This vehicle randomly stalls, seems to happen after a couple mile road test and idling at a stop light. I don't believe its any kind of torque converter stall or fuel pump or IAC because when it occurs its like someone turned the ignition switch off then bac...
1998 GMC C1500 Sierra SL 4.3L MIL Lamp on VIN: 1GTEC14W0W
Hoping you guys and can help me out here, I'm at a loss. Sorry in advance for this being so long, but I wanted to be thorough. Truck originally came in with P0172,P0175 Both Banks Rich. Testing found FPR leaking, after replacement fuel pressure held but was 80... Trouble codes: P0171 (Fuel Trim System Lean Bank 1), P0174 (Fuel Trim System Lean Bank 2)
2005 GMC Sierra 1500 SLE 5.3L actuators VIN: 2GTEK13T55
Removed the hvac housing to replace heater and evaporator cores. Everything went smooth. I checked to make sure all the doors moved freely when i screwed the housing back together. All the door seals looked ok. Got back together but the mode door and recircula...
2007 GMC Yukon SLT 5.3L Poor Idle Quality VIN: 1GKFK13027
Hi all. Have replaced throttlebody for sensor problems{p0121,p2119,p2135,p1516,p2101-goes into limp in and veh.stability light on}-fixed problem but cannot get vehicle to relearn idle.100 rpm hi in gear-at times in park or neutral will go up to 3000.Tried real...
2006 Honda Civic LX 1.8L No Start VIN: 2HGFG12676
Hi, I have a 2006 Honda Civic Lx Coupe no start. Customer states battery die, jump start engine and stall. Engine cannot start ever since and tow vehicle to me. First thing I notice was the key light flashing. Suspect immobilizer problem so I scan for code in ...
2006 Hummer H3 3.5L flywheel VIN: 5GTDN13676
GM special tool part number EN6547 to lock up flywheel in order to torque crankshaft pulley bolt. Can you lock it up with a pry bar? thanks,
2007 Hyundai Santa Fe SE 3.3L MIL Lamp on VIN: 5NMSH73E47
I'm starting to get confused!! Fuel gauge works fine for a bit and then goes to empty with low fuel light on and codes get set. Read other posts on IATN and checked fuel level sensor and decided to replace. Same issue after replacing. Here's what I have now. D... Trouble codes: P0463 (Fuel level sensor A circuit high input), P0464 (Fuel level sensor A circuit inter.), P2068 (Fuel level sensor B circuit high)
2000 Infiniti QX4 3.3L fuel injectors VIN: JNRAR07Y2Y
replaced distributor. the cam and crank sensors are built inside. ran a labscope waveform for cam sensor 120deg signal. After 2 spikes the signal goes dead {this is checking it at blue wire term 4 at dist]. new distributor did not change a thing. bat voltage s...
2008 Infiniti FX35 3.5L Tire Wear VIN: JNRAS08W88
The first two sets of tires we put on were Kumho Solus ECO (H), the third set was Bridgestone Dueler (V). We can't seem to get any good advice from our vendors and the choices for us have been limited. The size is 265/60R18, V speed rating is OE.
1997 Isuzu Trooper LS 3.2L No Start VIN: JACDJ58V7V
This vehicle was towed in as a no start. Testing so far shows that rpm is being read on scan tool, it does have injector pulse, no fuel pressure or spark. Fuel pump has failed and will need replacement but we would like to know why it has no spark. We have fo...
2002 Jeep Grand Cherokee Laredo 4.0L No Injecter VIN: 1J4GW48SX2
Thanks to all in advance, this Jeep arrived with a no start condition, so we scanned the pcm and found code p1389 ASD Relay Output Voltage at PCM. we have tested the ASD relay and have tested the relay cavity from the output circit to the pcm and have found le...
2007 Lexus IS250 2.5L Starting
Hi all, this car will turn over once, start and shut down immediately, as if the security alarm had been activated. If you disconnect the battery for a while it will do the same again. I don't think its the security because once it cranks and shuts off the che...
2008 Lexus LS460 4.6L abs module VIN: JTHBL46F58
Hello all. We are working on an 08 Lexus. The car came in with an abs accumulator internally leaking. We replaced that about 6 months ago and now the car came back with a C1345 ABS Linear Valve Offset position lost/not learned. We replaced the ABS unit but sti...
2011 Lincoln MKZ 3.5L Unknown VIN: 3LNHL2JC4B
This car has vibration/noise at 50-51 mph. It sounds similar to a wheel bearing. The noise does NOT change: when turning, accelerating, decelerating, neutral, drive, or any gear. The only time it makes the noise is in that specific speed range. The driveshaft ...
1999 Mercedes-Benz C230 Kompressor 2.3L Poor Idle Quality, Surge, Stall VIN: WDBHA24G9X
we have had this car for a month cant get anywhere on it. start the car up takes about 4 or 5 times to get it to run first couple tries it always dies no matter if u give it gas or not. after getting it to run still has very ruff idle and back fires. tested su... Trouble codes: P1235, P1236, P1525, P1420, P0446
2001 Mercedes-Benz S500 Guard 5.0L ABC System VIN: WDBNG75JX1
Car arrived with Airmatic message in the IC. Opened the hood and car has ABC not Airmatic. Test ABC pressure and it was much below min @ 1 bar. Replaced the ABC pump, replaced the filter twice and rodeo twice. System pressure now in spec. vehicle level test go...
2003 Mercedes-Benz E500 5.0L abs
C2134 Any Help On This Code?
2002 Nissan Xterra SE 3.3L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 5N1MD28YX2
This came in with a surging idle, random misfire and p0300 and sometimes a lack of power. When watching alpha readings on idle, one bank starts to do drop slowly to 70 and it starts chuggling then it returns to 100 and then the other banks alpha readings start... Trouble codes: P0300
2004 Nissan Murano SL 3.5L battery light on VIN: JN8AZ08WX4
The old alternator only put out 70A and the dash lights would pulsate at idle. very annoying at night. I got a new alternator and put it on. seems to be charging fine. 14.3-14.4 volts. 109 amps. battery test good. diode pattern is good. i used two different ch...
2004 Porsche Cayenne S 4.5L Rear Hatch Ajar
Rear tailgate ajar
2005 Smart Fortwo Passion .8L gear position sensor VIN: WMEAK00F85
Hello tech-world. I have been servicing the diesel Smarts for 9 years now but still have little information on them so I was hoping someone has seen this issue on them before. This 05 buggy will intermittently (once a week or so) shift itself into neutral at h...
2001 Subaru Outback Limited 2.5L Charging VIN: 4S3BH68651
Hi guys, this outback came in with a no/slow crank concern. I tested the battery & it failed right. Replaced the battery & performed a charging system/ starting system test with my midtronics tester. Everything passed. Let customer go. 3 days later he came in ...
2007 Subaru Impreza 2.5i 2.5L Electronic VIN: JF1GD61607
Replacing a Transmission Control Module in a 2007 Subaru. I found the procedure for the facilitation of learning control to be performed after TCM replacement. Do I need a factory scan tool to do so or can my information on my vehicle specific verus or autel b...
2001 Toyota Camry CE 2.2L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 4T1BG22K11
Hello and thanks ahead of time. My tech replaced the head gasket on this car and ever since been getting a rich code and no accelleration. AF and 02 bothe indicate rich condition tested TPS ok IAC seams to function normal.This car came to me with gasket blown ... Trouble codes: P0172 (Rich bank 1)
2001 Volkswagen Beetle GLX 1.8L Cooling Systems VIN: 3VWDC21CX1
This vehicle has an intermitent overheating issue. We have replaced the radiator and thermostat. The water pump [with metal blades] was repalaced a year ago. It only overheats on long, high speed driving up hills. [Interstate 80 from SLC to Park city]I expect ...
2002 Volvo S60 2.4L Compressor VIN: YV1RS61R32
Comprssor cyl time short in warm wether 90 + scan pids show -40f on ambient temp.wear is ambient temp sensor ? is it evap sensor & is there a evap sensor on this veh.

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2007 Acura RDX 2.3L Turbo Boost to high VIN: 5J8TB18217
we check all solenoids and they were good, put manifold boost pressure direct to waste gate actuator and still over boost problem, car needs turbo, either wastegate broken because arm moves ok or variable vane seized, customer wishes not to fix
2005 Audi A6 Quattro 3.2L Radio, Navigation, Amplifier, VIN: WAUDG74F55
2006 BMW 750Li 4.8L heater VIN: WBAHN83516
The car is finally gone , the water valve replacement helped , but when we opened the dash and found an actor motor bad and replaced all was good. Thanks for the help Mark
2006 Cadillac CTS 3.6L Battery VIN: 1G6DP57776
car had a faulty overhead dome light circuit board,it was showing a slight output of 4 volts at all times causing the modules not to go to sleep after the rap shut down
1994 Chevrolet K1500 5.7L Acceleration VIN: 2GCEK19K6R
Because of the mileage we changed the fuel pressure regulator, it was weeping a bit but the problem persisted. Took the distributor out and found the exciter wheel loose on the shaft. The shaft was too worn so we replaced the distributor and the truck runs p...
1996 Chevrolet Camaro 3.8L Misfire VIN: 2G1FP22K7T
Thank you all for taking the time to help. Indeed it was nothing more than a typical misfire issue. I made it much more complicated than it should have been. The ignition wires were at fault. The first time I drove it after installing the pump, tank and filter... Trouble codes: 90300.
2000 Chevrolet Tahoe LT 5.3L No Mode Control VIN: 1GNEK13T1Y
Calling this a fix. After talking to owner other shop also put in a "new" mode door motor. It was the wrong part. Put old motor back in. The unit work, but backwards. Defrost is heat, heat is defrost. Rear control which hasn't work for a while started working....
2000 Chevrolet S10 4.3L misfire VIN: 1GCDT14W1Y
thanks for all the help.found good comp after a checked it the second time(may have had bad seat of tester).the fix was new plug wires.first ones were bad.had spark at cap to wire but no spark at plug. getting hard to find good parts some times.god bless ameri...
2006 Chevrolet Trailblazer LT 5.3L Misfire VIN: 1GNET13M86
Well after finding nothing wrong with the valve springs I decided that we had to have defective new lifters on cylinder #6.The lifters came from our local GM dealer.The customer sure didn't want to spend anymore money on this thing and we didn't want to repla... Trouble codes: P0300.
2007 Chevrolet Avalanche LTZ 5.3L p0306 VIN: 3GNFK123X7
Hello. everyone. I am very happy as you gave me lots of information even small details I may forget/miss. First of all, this truck is fixed and runs well as before. lobe: I checked when head out and no scoring/worn. 2.removed screen und...
2008 Chevrolet Aveo LT 1.6L MIL Lamp on VIN: KL1TG56668
Hello Techs Thank you for look up, we are call up local dealer for update parts, but their respond none available, back order. Thanks again! Trouble codes: P, 2106 (Throttle control system performance- limitation active), P2110 (Tac system forced limited throttle actuator speed), P2135 (Tp system sensor 1-2 correlation), P2282 (Intake manifold air leak).
2011 Chevrolet Silverado 3500 HD WT 6.6L Def VIN: 1GC4KZC8XB
This truck is fixed. The rear NOx sensor did not need to be replaced. I talked to the customer at the end of last week and he said the light is still off. He believes he has driven about 750 miles since the repair. What fixed this truck was a completely...
1996 Dodge Dakota 3.9L No Start VIN: 1B7GL23X7T
it ended up being the ecm' when it acted up I decided to check power and grounds at the ecm. when I took plastic cover off the ecm only had one screw in it was loose. so I tapped on it and it started right up tap again it died. so I replaced ecm its been good ...
2005 Dodge Ram 3500 SLT 5.9L ABS Light/Brake Light VIN: 3D7MS48C25
This thing finally threw a code 78 "foundation brake". Basically there was a problem somewhere in the circuit that monitors the master cylinder level. By process of elimination, I was directed to replace the CAB(brake module). I am waiting for customer to s...
1997 Ford Expedition Eddie Bauer 5.4L cold start VIN: 1FMFU18L6V
thanks to everyone replaced iac valve and all is good
2002 Ford Taurus SE 3.0L Poor Idle Quality, Surge, Misfire VIN: 1FAFP58U32
Sorry for the delay, I was in Jamaica for a week. The customer declined the repair at this time. I will update if she decides to go ahead with the work. Trouble codes: P1151.
2005 Honda Accord EX 3.0L insturment cluster VIN: 1HGCM81605
This one turned out to be a Cluster. Parked it back outside in 4 degree weather and it started working again. Pull it back in the shop and out it goes. Of course he said it wasn't like that when he brought it in. I guess it's a good thing it's January. It...
2004 Jeep Liberty Limited 3.7L Low Power VIN: 1J4GK58K04
After the second PCM replacement, customer states vehicle has much improved performance. TPS voltage still not a spec but customer is satisfied with repairs. Thanks to all!
2006 Jeep Commander 4.7L air flow VIN: 1J8HG48N06
Thank you to all that replied, I have cleaned out the air box, had leaves etc in the bottom of heater case, performed calibration and put vehicle back in service, have not heard back from client as of yet. Thanks again
2008 Kia Sorento LX 3.3L key fob VIN: KNDJC73518
Thanks for the replies, you do need a scan tool. When I checked, I found the option for programming remotes WAS on the Snap-On scan tool. I thought I checked last year and it wasn't, so either it was just added or I hadn't looked earlier. So programming was a ...
2005 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALME11425
The consensus was cracked cats. I restricted the exhaust and listened with the sonic ears and heard leaking exhaust. One Rover dealer said no warranty. Another Rover dealer said yes the warranty applies to this one. We made an appointment for when the customer... Trouble codes: P1162 (O2 sensor precat aging bank1), P1164 (O2 sensor precat aging bank2).
2002 Mercury Mountaineer 4.6L No Start, MIL Lamp on VIN: 4M2ZU86W62
I suspected the fuel pump module was the issue here but wanted to confirm it by testing. Thanks to Steve from Florida for supplying the specs I needed. The truck ran great at all speeds on 33PSI but threw codes. The new pump puts out 65PSI and is internally... Trouble codes: P0171, P0174.
2000 Nissan Altima GLE 2.4L MIL Lamp on VIN: 1N4DL01D6Y is fixed. After pouring over numerous wiring diagrams, i was finally able to find a diagram that showed the pink or red wire going to DLC pin 16. I followed the wire, and lo and behold, it was cut by the battery cable. Who ever worked on this car bef...
1990 Toyota Pickup DLX 3.0L pedal VIN: JT4VN93D6L
Air was still trapped in the load valve, system is very difficult to bleed all the air out. Also calipers where flexing do to a heli coil in one of them was causing the caliper not to seat flush. Very important to bleed it in the correct procedure. Load valve...
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