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Prev Professional Automotive Repair Technical Discussions for March 17, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2004 Audi A6 Quattro 3.0L oil pressure VIN: WAULT64B34
This vehicle came in with an intermittent oil pressure warning light after being driven for 30 minutes.We checked the oil pressure and found it to be below spec at idle and at 2000 rpm. We removed the oil pan to check the sump and found it to be clean-no debri...
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1989 Cadillac Eldorado 4.5L Excessive Emissions VIN: 1G6EL1156K
This car is failing the ca emission test for high NOX, the vehicle has 280K miles on, checked the fuel pressure and its under specs, o2 sensor failed the rise test so I replaced that, Cleaned the EGR passages and also tried another egr valve, customer had alre... Trouble codes: 46 (lean mixture)
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2000 Chevrolet Monte Carlo LS 3.4L engine VIN: 2G1WW12E7Y
I have this car that has me stump, the check engine light came on code P0301 came up cylinder 1 misfire. I change the spark plugs,wires,cam sensor,crank sensor,map sensor and the harmonic balancer also I change the air filter. Turned the light off, drove the c...
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2003 Hummer H2 6.0L instrument cluster VIN: 6GRGN23U73
2003 hummer H2 instrument inop-speedometer stuck to passed 120.oil gauge inop.every thing was fine with this vehicle after replacing steering gear box.customer drove vehicle for 2 days and came back with instrument and speedometer partially inop-dealer wants 2...
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2000 Jaguar S-Type 3.0L A/C compressor VIN: SAJDA01C2Y
I have this jaguar type-s that the a/c compressor takes 5 minutes to come on after is turned on. I have check for codes but I haven't found anything. I have search the web and found that they have a lot of problems with the evaporator sensor and it has 3 senso...
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1993 Toyota Supra 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy VIN: JT2JA81J7P
Vechicle towed in no start. I replaced the IAC and it runs. Around 2200 rpm it breaks up spitting black smoke and not able to rev any higher, spoke to customer, it has been doing this and got worse. I pulled plugs, wrong ones but all carbon covered. Replaced w...
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1994 Toyota Camry LE 2.2L Idle Vibration VIN: 4T1SK12W5R
This car came in with extreme vibration in the steering wheel at idle. We know that this vintage 4 cylinder Camry are notorious for this but this one is vibrating more than what would be considered the design flaw aspect. Inspected the engine mounts and found ...
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 Chevrolet Cavalier 2.4L timing chain VIN: 3G1JF12T11
At this time the vehicle is not repaired. However I am now convinced I have been looking in the wrong place. The water pump was replaced as part of this job. The noise has not changed with a new GM tensioner and the oil passages are not plugged. When I replace...
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2004 Chevrolet Astro 4.3L Poor Idle Quality VIN: 1GNDM19X84
This van is a commercial rig and the owner is unable to leave it for any significant time. The problem is intermittent. I only experienced it one time and did not capture any useful data. The TPS seemed like the most likely cause but never read out of specs...
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2001 Dodge Ram 1500 Truck ST 5.9L brakes VIN: 1B7HF16Z81
ok final fix was the rear wheel cylinders on this truck. Again, for reference this truck lost brake pedal after sitting overnight. No leaks. NO loss of pressure in the pedal after bleeding. Replaced everything front to back after pressure testing lines and sho...
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2009 Dodge Ram 3500 Truck Laramie 6.7L No Start VIN: 3D6WG48L09
very sorry for not closing this request earlier we installed a new egr flow controll valve and it would run after 5 km the check engine light would reappear and set code for egr controll valve truck was sent to cryco they did pcm update, still same thing now b...
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2009 Jaguar XF Supercharged 4.2L Shifter VIN: SAJWA07C29
Many thanks to all replies. The shifter assembly was indeed the culprit. No special programming was required. After checking with the owner 2 weeks later, all was well.
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1997 Jeep Wrangler SE 2.5L No Start VIN: 1J4FY29P3V
WELL,THE VEHICLE LEFT MY SHOP THE SAME WAY IT CAME.ON A CAR CARRIER.I TRULY BELIEVE THE OWNER KNOWS WHAT HE DID WRONG,BUT MAY BE EMBARRASSED ABOUT NOT BEING MORE ATTENTIVE WHEN SWAPPING THINGS FROM ENGINE TO ENGINE.ANYWAY,HE SAYS HE IS GOING TO DO THE TOP END ... Trouble codes: P0320 (Intermittent or no crank signal).
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2004 Jeep Grand Cherokee Laredo 4.0L MIL Lamp on VIN: 1J4GX48S34
Fixed? Well I think it is. To Rick, yes there is only one sensor at the stat housing. The ECM drives the gauge. Gilbert and Matthew explained the fixed temp reading as a default stored after the code set. Peter and Allen may have nailed it as a wiring prob... Trouble codes: P0117 (Low Coolant Temp Sensor Voltage).
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1996 Mercedes-Benz C280 2.8L battery drain VIN: WDBHA28E7T
Turns out the trunk light was staying on. Put my iPhone on video record mode, put in trunk, and closed it. Opened trunk, watched video, light was on! Also, thanks for the tips about checking for draw. I'm embarrassed to say that I've been doing it with a t...
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