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1998 BMW 528i 2.8L Starting
thanks for checking this one out! we have replaced the intake manifold gasket due to a vacuum leak causing a lean misfire at idle when cold. while apart, we noticed the wiring to cam sensor was all cracked and shorted. it also had a cam sensor code. we also re...		 View
1993 Cadillac DeVille 4.9L Excessive Emissions, Misfire
we can't get this cadillac to run right it won't go into closed loop and cylinder #3 and # 8 have miss fires due to fuel (too much) not too sure where to go next on this.		 View
2002 Chevrolet Cavalier 2.4L engine
hi all hope you can help we are bald from pulling our hair out. this car came in with a leaking head gasket it was running fine. we removed the head and sent it out for repairs it was presser checked and the valve were reground. the head was resurfaced. we too...		 View
2003 Chevrolet Silverado 5.3L master cyl
First I must tell you this truck is a repairable. Have no idea if the brakes were like this before the accident or maybe it was why it was in an accident. The truck was hit in the right front. The problem is it has a low brake pedal and does not want to stop w...		 View
2003 Chevrolet Suburban 5.3L A/C tentioner
a/c is cold and pressures look good and No cycling issues the problem we have on this unit is that the tentioner will vibrate/rattle when engine is reved up above 2500 rpm in gear or in neutral it actually ratchets to the stop causeing the noise. what do I do ...		 View
1998 Chrysler Sebring 2.5L No start
Car towed in. No start floods plugs right away. Has strong spark and good compression stores no codes. If you pull the fuel pump relay and crank on it enough it will finally start but runs bad hesitates extremely rich. Timing belt and marks are all ok. Disconn...		 View
2002 Chrysler Town & Country 3.8L engine replacement
Hi guy's, I have a 2002 chrysler t&c that I'm going to be replaceing the motor with a used one on monday, according to mitchell your suppose to take it out the bottom, looking at it I'm wondering if I could remove the wiper assembly and take it through the top...		 View
1996 Dodge Ram Van 3.9L MIL Lamp on
good day gentalmen,this van originally camin for LOF. clean bat. cables and the c.e.lite on;was and is running good idle and highway; checked for codes none and the lite was not on when the van was driven into the stall. took care othe other items and requeste... Trouble codes: P1391 (Loss of cam or crank signal).		 View
1999 Dodge Durango 5.9L Differential
The front differential blows the fluid out the vent even though it has Chrysler's "fix" for this problem. I went through it again and got all within specs with new bearings and seals and put synthetic fluid in it this time. Drove it in 4wd about 1/2 hour and i...		 View
2001 Dodge Pickup 5.9L cranking
we have a dodge truck that we install a reman engine in. we now have a noise from starter. this happens when you crank the truck to start, once the truck starts and you release the key, you hear a clagging sound. sounds like a start trying to engage. on inspec...		 View
1997 Ford Ranger 3.0L Poor Idle Quality, Poor Fuel Economy, Rough engine
The concern is high idle - 900-1000 rpm, rough idle (?) and only 6 mpg fuel economy. While idling, rpm's are 880 to 910 and the engine has a very light, erratic shake or roughness to it. No codes of any type, oxygens sensors are switching great. When starting ...		 View
1998 Ford Pickup 4.6L EPC Solenoid
Guys need help on this-we are starting to over think and analyze this problem to a fault.Truck has no power most of the time (even in reverse) and bangs a hard code with KOEO of P1746 EPC Solenoind circuit short.Replaced EPC & harness in trans.Same problem.PCM...		 View
1998 Ford Taurus 3.4L no power
I replaced right bank intake camshaft and left bank exhaust camshaft due to slipping gear problem on these engines. The other two camshafts were welded to prevent them from breaking in the future. Car starts and idles beautifully. When you get on it it dies ou...		 View
1998 Ford Taurus 3.0L Poor Fuel Economy
This is a coworkers personal ride) he has been getting poor mileage for last year. Egr code set first and he replaced it. code did not return but after another couple months P0171 and 174 started coming up, so he replaces the front O2 sensors After about every... Trouble codes: P0401 (egr), P0171 (lean bank 1), P0174 (lean bank 2).		 View
1998 Ford Windstar 3.8L MIL Lamp on
A question about intake runner controls on the 1997 ford Windstar. I have a fault code p1512 and p1538. I ran through the test as outlined by Mitchell. The bottom line is according to the test results both intake manifold runner control modules need replacemen...		 View
1999 Ford Expedition 5.4L Blower motor, dome lights, power windows, radio
GEM was replaced 1 month ago due to drain on battery. We posted the problem on IATN at that time and the problem was repaired. Now a month later the accessories are staying on with key off. Both front and rear blower motors, power windows, factory radio, ABS m...		 View
2000 Ford Pickup 5.4L heater core
heater core has the appearance of electrolysis, 4th core in 6 months. coolant does get flushed each time. (not this time, we need to know why). voltage reading in the coolant never goes above .24 until radiator is grounded. ph is 9.9 to 10. during starting vol...		 View
2001 Ford Explorer Sport 4.0L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on
only when it is cold temputure out side for about 2-3 min. it idles about 350 - 400 rpm runs like missing on 3 cyl but checking them no miss fires occur p0171 and p0174 codes present we have changed plugs wires iac tps maf map ecm coil fuel pump twice thinking...		 View
2001 Ford Windstar 3.8L Poor Idle Quality
Need help please... Have a 01 windstar, customer says van will idle surge at stop light after first mile of drive. This did happen to us twice. Check fuel pressure, good, relaced iac valve and mass sensor. Still have same problem. When it acts up if you step o...		 View
1994 Geo Metro 1.0L Exhaust Valves
Dear Techs, I have this geo that don't like going away. Customer first had towed in at 172,725 miles for no start. Found timing belt broken. Replaced timing belt, ended up pulling head because cylinder #2 exhaust valve was bent. Everything went fine until Octo...		 View
1995 Geo Tracker 1.6L Hesitation
this car came in with no power, hesitation. started with tune up, now the power is back but hesitation seems worse heres what happens if i feather the throttle it will rev ,if i dump the throttle fast it falls allover its self seems like it only runs on one cy...		 View
2005 GMC Yukon XL 5.3L Steering
CO455 - C0550 CODES WERE IN HISTORY; CUSTOMER COMPLAINT WAS "several lights like ABS and ESC were flashing a couple days ago, then quit. thought I should get it checked out". "SERVICE STABILITY" IS ON INFORMATION CENTER DISPLAY. CLEARED CODES AND TEST DROVE, C...		 View
2003 Honda Accord 2.4L passenger door window
This car may have a ghost!! Customer brought in vehicle claiming drivers rear door window opens by itself then wont close. We assumed she was a nut case and must have opened it unknowingly and probably just needs a motor. Window would not close from either swi...		 View
1996 Jaguar XJ6 4.0L hvac
This Jag won't change temp no matter where the knob is set. Occasionaly it will change on it's own but with no regularity. The air modes and blowers seem to work properly. I have tried to adjust the amplifier with no change. I can power the servo from the ampl...		 View
2004 Jeep Grand Cherokee 4.0L No Start
VEHICLE CAME IN FOR A NO START, WE SCANNED FOR CODES AND FOUND THAT THE SCAN TOOL COULD NOT COMMUNICATE WITH ECM. FOUND THAT WE HAD NO SPARK AND THAT ALL SENSOR REFERENCE VOLTAGES WERE AT 4.2 VOLTS. AFTER MUCH DIGGING, WE FOUND THAT THE ASD RELAY WAS NOT CLOSI...		 View
1993 Lexus LS 400 4.0L No start when hot weather park under the sun
Hello, This 93 LS400 will crank over but it will not start when the weather is hot, park outside with all windows up. I have to let all windows down for a while so that inside cool off then it will start normal. I live in Houston, Texas. (The problem very much...		 View
1995 Mazda 626 2.0L Surge, Poor Fuel Economy, MIL Lamp on
ENGINE LIGHT ON, CLEAR CODE 158 RETURNS IMEDIATELY, REPLACED maf SENSOR INITIATED CONTINUITY TESTS, WIRING DIAGRAMS AND ALLDATA ARE LIMITED TO VOLT TESTS AT maf, TERMINAL 50 AT COMPUTER SHOULD INDICATE .6 VOLTS, INDICATED VOLTS ARE 7 VOLTS VEHICLE RUNNING, NO ... Trouble codes: 158 (MAF signal volts high).		 View
1981 Mercedes-Benz 300SD 3.0L engine
Hello benz-guys. So impressed of the result with my previous post with another mercedes that i decided to try with this one. this car is giving me trouble. (I'm a bmw fan, not MB) so the first complaint of that car was SMOKE... lot of smoke... so i went with r...		 View
1995 Mercedes-Benz S320 3.2L upper vents in heat mode
The customer complaint now is not enough volume of air coming out of the center vents in heat mode. I have verified this, specifically when you set the temp wheel up a bit you can hear the fan running, you can even turn the fan to the manual High mode and very...		 View
1999 Mercedes-Benz g500 5.0L 1-2 shift
this g;wagon will not shift out of first gear when cold,unless you do it manually.after that it will shift fine the rest of the day. iknow that with this mileage the trans is probably shot,but cust. says this has been going on for 3 years.any help appreciated ...		 View
2003 Mitsubishi Eclipse 3.0L No Start
crank no start, no fuel psi, replaced fuel pump, r&r plugs, fouled, replaced spark plugs, fuel psi is good now, still crank no start, seems to be over-fueling, no books to cover this car, were is the fuel temp sensor A,would this sensor cause a no start concer... Trouble codes: P0183 (fuel temp sensor a high input).		 View
1997 Nissan Pickup 2.4L Hesitation, Cuts out, Stall, MIL Lamp on
Need some help here guys and I'll tell you now that I don't have all the info that I would normally present if I were working on this vehicle. I am a retired Ford tech in Florida - the vehicle in question belongs to my brother in Texas and the poor kid is gett...		 View
1997 Nissan Altima 2.4L starter
Need help locating factory alarm module. Module is not located where Mitchells says for years 1995,1996,1997,1998. Tried to locate using wiring diagram and was unsuccessful. Intermmittantly starter will not engage and lights flash and horn sounds. Also the sec...		 View
1998 Plymouth Neon 2.0L speedodometer
Can not find any dia info on speedodometer. speedodometer is inop. scanner shows speed but doesnt show on inst. cluster. Have taken out vss, inspect for stripped gear. No damage. Any dodge techs, please give me some insight on these circuit.		 View
1988 Pontiac Fiero 2.8L No Start
i ran the check off shopkey for no start. check spark at 2 wires none. installed noid light and no light during crank. go to chart a-3 ign on check for power at both terminals on injectors yes. disconect 4 way conn at module touch harness con. at terminal 430 ...		 View
1994 Pontiac Bonneville 3.8L battery
Battery intermitant discharge to 7 volts. You can drive the vehicle between 1-3 weeks at a time,then at any time when the vehicle sits for 6-10 hours the battery is drained. No interior/exterior lights and obviouly no crank on engine. Very hard diagnosis,knowi...		 View
1996 Pontiac Grand Am 2.4L No Start
Hi Folks: This car was towed to me after another garage could not figure it out. It was driven to that garage. I was told by the owner it ran very poorly. He said it skipped and had no power. While at the other shop, the condition deteriated and now it will no... Trouble codes: P0300 (interm misfire).		 View
2001 Saab 9-3 2.0L timing cover
hey guys thanks for reading...this saab was towed in no oil pressure. found the bolts that hold the 2 halves of the balancer pulley assembly together backed out gouging a hole in the oil pump cover and shearing the lock tabs and locating pin off ruining the ti...		 View
1993 Saturn SL2 1.9L Excessive Emissions
This car has me stumped. The O2 sensor pattern at 700 rpm idle is a cycling .3 to .8 volt pattern of 140 ms from bottom to bottom which I suspect to be a lean injector or two. The pattern at 15 mph is a dirty signal but is switching from rich to lean. At 25 mp...		 View
2005 Volkswagen Jetta 1.9L drivetrain
This vehicle came in with a deep thunking noise while running especially when the clutch pedal is depressed. The noise/vibration is there with the clutch released but not as noticeable and the engine rpm has to be increased in order to hear it. The noise is es...		 View
1993 Volvo 850 2.4L No Start
car has no spark or injector pulse,,replace cam sensor , crank sensor,computer with known good one,ck. wiring harness,if touch blue wire @ ecm or crank sensor with power probe, and car will run every time.checked wave form on known good crank senor in a runnin... Trouble codes: 212 (o2 sensor), 113 (02 sensor).		 View
2001 Volvo V70 2.4L Fuel Guage
All Data Wiring diagrams and test procedures are non existant for this curcuit. Was told by local Volvo dealer that the left side senders were very common & in stock "on the shelf". Replaced sender / fuel guage still inop. No other guage problems on cluster. A...		 View

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Audi A6 2.8L AT level
Hi all , thanks to all who replied. At the bottom rear of the transmission pan there is a 17 mm inhex plug, must warm up to 30-40 Celsius, need a WAG scan tool to check temp,, a slight amount of fluid should drip out at idle in Park. Bye Techs and thanks...		 10
2002 Audi A6 3.0L MIL Lamp on
Sorry guys, this one got pulled away from me. Another disgruntled Audi owner looking to trade for Japanese car. Thanks for the advice all, other Audi/VW started piling up in the lot and being the only tech on these lines I didn't have the luxury to go back a... Trouble codes: 16399 (exhaust cam adjustment Bank 1), 19760 (exhaust camcrank position Bank 1).		 5
2008 Audi A6 3.2L ignition switch
OK, i've said this befora and shall do the same now again;"Always check the basics, Bojan"...anyway, when jumping the terminal 15, we have pulled the relay out and didn't put it back...and we were suppose to:(...someone much smarter and experianced has done it...		 4
1994 BMW 318i 1.8L drive train
I want to thank everyone for sharing their knowledge. The customer decided to wait on repair most of the responses that i received suggested driveline replacement and after more testing and the information i received suggesting drive line i felt comfortable te...		 15
2002 BMW M5 5.0L engine
Hey Gang, Thanx for the quick response. Slipped a new flywheel in place and that took care of the business. Thanx again - Bernie		 8
2003 BMW Z4 3.0L MIL Lamp on
SCANED COMPLETE CAR NO OTHER PROBLEMS FOUND WE BELEVE CAR NEEDS NEW EGS/ TRANSMISSION CONTROL COMPUTER CUSTOMER WAITING TILL AFTER TAXES TO REPLACE EGS THANK ALL FOR HELP I WISH I HAD THE FIX THINK THE EGS WILL DO IT. Trouble codes: 299A (can fault managment egs).		 3
2000 Cadillac DeVille 4.6L controls
Thanks to all who replied.I replaced the temp. actuater and that took care of the problem.		 4
1995 Chevrolet Caprice 5.7L No Start
well, this one is fixed. turns out that when it would'nt start, we also had no injector pulse, or fuel! power to everything-NO GROUND! volt drop test revealed bad grounds,when it would run, it ran until it got warm enough for the connection to expand enough t... Trouble codes: 16 (lo res pulse circut).		 16
2005 Chevrolet Silverado 6.6L No power when cold
This is an intermittant problem and have not yet confirmed a fix. Thanks for responding with the emails though. I am changing the Turbo Vane solinoid and I think that will fix the problem. Again, Thanks. James Trouble codes: P0045 (Turbocharger Vane Position Control Solenoid Control Circuit).		 3
1970 Dodge DART 225CID Stall
Thank you to all who responded. Many of you suggested that the valves must "click" to get correct manifold vacuum. A local friend suggested to set the valves at .012 and .022 for intake and exhaust at operating temp. This gave them some click and the manifold ...		 53
1997 Dodge Pickup 5.9L thermostat
thanks for the ideas that where submitted but I still can't track this one down did install one more t-stat per dealers urging but still the same thing I'm gonna have to assume the guage is reading low as we are getting heat out of dash at 150 customer decided...		 4
2000 Dodge Stratus 2.5L Mode Door
Well this one is out of the shop. Went to check codes, none were found. Found that on these, the BCM needs to see where the blend door is, and these actuators tend to go bad where it doesn't tell where the motor is positioned. Also was suggested that control h...		 4
1991 Ford Ranger 2.3L Hesitation, MIL Lamp on
I'm sorry for taking so long to close. After confirming power, groung and a good crank sensor signal to the ignition module, I condemned it. This customer is not interested in spending the $500 or so the final bill will be. He has decided to tow it to the g... Trouble codes: 57 (Octane adjust pinnps circuit fault), 18 (No tach input or spout open), 28 (Loss of tach - rt side dual plug DIS).		 3
1994 Ford Bronco 5.0L No Start, Stall
Thanks for all the responses to this issue that we have received from everyone. What is the old saying, new doesn't mean good? Well, sure enough, the PIP signals from the new distributor was intermittently irratic. Installing another new distributor, this o...		 5
1995 Ford Escort 1.9L Poor Idle Quality
Thanks for the help. Bosch Plats and bad wires , and vac leaks at the pvc elbow , its gota be tight, and the brake booster vac hose was hard as a rock. And one other leak at #4 at intake. Checked the MAF with lab scope its putting out signal. Strange the scann...		 14
1996 Ford Pickup 4.9L speedometer
Thanks for all of your responses. We found a bad cluster. All was well when we replaced it. Thanks again!		 8
1997 Ford F-Super Duty 7.5L Cooling Systems
A new radiator cap seems to have fixed this truck, spoke with customer today & all is ok for now! We did start the engine with the thermostat & housing off the engine to confirm that the water pump was operating correctly.		 11
2000 Ford Explorer 4.0L Converter clutch
Taking into account the relatively high miles , 150K , and the fact the torque converter clutch lining material was circulating with the fluid the recommended repair would be a rebuild of the trans not just the converter replacement.A thank you to John [...] ...		 8
2002 Ford Escape 3.0L 3-2 coast sol.
alexander in new jersey nailed it. the pink/black wire right out of the ecm had broken and had 2 strands touching. ohm okay until i pulled on wire and lost connection. thanks to everybody!		 3
2003 Ford Ranger 2.3L No Start
well after couple weeks truck has not return so I will call it a fix. the problem was the fuel pump intermittent failure. thanks for you precious time.		 7
2005 Ford Pickup 6.0L steering
This beast is fixed. Ended up replacing the power steering pump to resolve the issue. I like most of us do not own pressure and flow gauges for p/s, However using "farm diagnostics" the engine rpm was changing when steering in place (indicating pump function)....		 6
1997 GMC Suburban 7.4L Drivetrain
Thanks To All Who Replied, Sent Truck Back To Transmission Shop & As Most Of You Replied They Found Broken Snap Ring At Transfer Case Output Shaft. Don't Know How This Occured On A "Rebuilt" Transfer Case, But They Repaired It. Truck Has Been Gone For A Week N...		 7
1998 GMC Pickup 7.4L Poor Idle Quality, Surge, Stall, Misfire
recieved three replies on this one-one suggested leaking fuel injectors-however the fuel pressure on this did'nt show any sign of leakdown,one suggested worn dist.bushing which i had already chkd when i replaced rotor,the last suggested unplugging timing conne...		 3
2003 GMC serria denal 6.0L Misfire, MIL Lamp on
cked wiring at throttle body no problem found cleaned throttle body road tested 125 miles no ck lite but... thanks for the ideas mark Trouble codes: p0120A (tp sensor problem), p2135A (tp sensor problem).		 4
2002 Hyundai Elantra 2.0L Mechanical
they always seem to be the smallest things. the timing belt tension was toooooooo tight, making all sorts of noise..thanks!!		 4
2001 Isuzu Trooper 3.5L MIL Lamp on
Wow what a ride I found small vac leak at egr valve and replaced it. That fixed my lean problem. after that the code switched from multipul missfire to cyl #2 missfire all the time. Then a BIG thank you to Dean [...] and Clyde eliott who both tipped me off t... Trouble codes: P0300 (multipul missfire pending code).		 4
1999 Jeep Grand Cherokee 4.0L No Start
I never did find any bad/shorted sensors, and due to cost of computer. Many suggested CMP or CKP sensor or O2. I decided to install a relay that would provide the ground to the ASD while cranking, thereby saving on the cost of a new computer.		 12
1961 Lincoln Continental 430CID Brake drums
I had 13 replies on these brake drums and followed up on each one - and the recommendations from those people. We finally found the rear drums in a salvage yard in Florida and the front drums in a yard in California. Without exageration, we made over 100 phone...		 13
2000 Lincoln LS 3.9L struts
THANKS TO EVERY ONE AND HAROLD. I REPLACED THE SWAY BAR,LINKS AND KNUCKLES. THE NOISE IS GONE AND THE RIDE IS MUCH BETTER.		 5
2002 Lincoln LS 3.9L Cruise
Thanks for the help but it ended up being the clock spring. When we first started Diag we were thinking clock spring but when we pulled it down to ck it it tested good. After ck'ing it several times I found a bad spot and it would short out with the radio cont...		 2
2002 Mazda Millenia 2.3L Cuts out, MIL Lamp on
The problem with this vehicle was that the ABV vent was not venting and causing an overboost condition. When the PCM sees a problem it stops communication with the Traction Control Module and goes into a limp mode. The computer was sensing a overboost conditio... Trouble codes: P1540 (ABV Control System Malfunction).		 5
2002 MINI Cooper 1.6L Lighting
Due to the need to close this help request I will call it fixed for now...the problem has been so intermittent that it will take some time to prove out. We replaced the whole headlamp assembly per dealership normal next step. We had proven it not to be the h...		 3
1986 Nissan Pickup 3.0L Poor Idle Quality, Cuts out, Stall
ok guys gonna close this one for now. Apparently this one is not a priority right now. its gonna be the new shop truck. Got the inj. back just need to stick them in. thanks alot I will reopen later if needed		 3
1998 Nissan Maxima 3.0L Surge, Stall
Hi everyone: Thanks for all the good info about this issue. DTC P0135 is for the crank sensor reference signal, (the one in front of engine behind crank pulley). Inspect the harness for oil contamination and damage from PS belt if harness has been touching the... Trouble codes: P1335.		 12
1994 Oldsmobile Cutlass Supreme 3.4L Unknown
THANKS TO ROBERT FROM NORTH CAROLINA AND CHRIS FROM MISSOURI. BOTH SAID TO CHECK THE VACUUM BOOSTER HOSE WHERE IT CONNECTS AT THE BACK OF THE INTAKE. SURE ENOUGH IT WAS SOFT, SWOLLEN, AND OIL SOAKED. REPLACING THIS HOSE MADE THE BRAKING 10 TIMES BETTER. HO...		 2
1998 Oldsmobile Aurora 4.0L cooling system
Head gasket is bad. I have the combustion gasses as mentioned, and the coolant shows up in the oil if it is run hard for an extended period of time. Customer neglected to tell me that he was losing two quarts of oil per month and only driving about 1500 miles ...		 9
2001 Plymouth Neon 2.0L no kick down
FINALLY FIXED!!!THANKS TO ALL WHO OFFERED SOME EXCELEENT ADVICE THAT DEFINTLEY LED US IN THE RIGHT DIRECTION,AFTER COUNTLESS HOURS AND LOTS OF FRUSTRATION,WE FOUND THE (JESUS CLIP)ON THE KICKDOWN CABLE TO BE MISSING AFTER RESEARCHING IDENTIFIX AND ALL DATA. WI...		 11
1985 Pontiac Fiero 2.8L MIL Lamp on
The nightmare is over. A search of all the local junk yards produced no '85 Fiero's for a donor ECM. The ECM is a one model-year only. I next was returning to ground zero and start completely over. I removed the PROM to see if the ECM would output a code ...		 13
2004 Pontiac GTO 5.7L stereo
I learned that the only way to get this radio to work is with the tech2. the radio needs to be programmed to work with the vehicle it is being installed into. thank you for the 3 responses I recieved it is appreciated. Thank You Jim [...] 		3
2000 Saab 9-5 3.0L Cooling Systems
Thanks for all of your responses. We found that the coolant temp sensor was intermittently failing. All is well after replacement! 		3
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