Tuesday, September 30, 2008

pcm 0745 the TCC is stuck off. what is the TCC and where?

Question:
1999 Cadillac devillie, pcm 0745 the TCC is stuck off. what is the TCC and where? I have tried the TPS at first from running symptoms but after learning to get the codes and reading the manual it says that its the TCC but do not know the actually definition of that abbreviation.I have a 98 with good trni was thinking of changing whole trani but alot of work!It seems to be fine in all gears but at acceleration it hesitates in overdrive and at stop lights the rpms are crazy up n down but if you place it in neutral it stops.Almost replaced the VSS but that would come with speedometer issues always?

Answer:
tcc stands for torque converter clutch. this is a solenoid that controls your torque converter. when it see the right parameter the torque converter gets lock up for better fuel economy on the highway. only on the hwy is the converter is suppose to lock up not in idle. if converter locks up in idle at a stop light the it may stall and make rpms jump. has this every stalled out on you? do you know where your tcc solenoid is and did you check power and ground to it? is the solenoid working as design? most time is a bad solenoid but also could just be a bad wire going to it. check the big trans wire connector and get a schematic for it to see if you have a bad wire or solenoid.

Thursday, September 25, 2008

1995 Ford Contour, changing rear brake, caliber will not release?


The piston doesn't just push in. It has to be threaded in under pressure.They make a number of tools for doing this.Here are a couple of them.

Monday, September 22, 2008

windows can be open or closed without ignition is on

QUESTION:
2003 Honda accord , windows can be open or closed without ignition is on

ANSWER:
sounds like a short in the driver door multiplex unit in the driver window switch .you will need to have the dealer use the factory scan tool to verify the multiplex system is operating correctly. but my suspicion is that the driver window main switch is defective.

Wednesday, September 17, 2008

Where can I ask a Car question?

You will find that all you have to do is type your car question in the box provided and click the tab at the bottom of the box. Follow the step by step instructions. There are mechanics online 24/7 ready to answer your question. You can decide if you want to pay them for there time and how much you would like to pay them if at all. its up to you. You can even choose the mechanic you wish to have your question answered by.

Friday, September 12, 2008

92 Toyota pickup jerks and looses power

Question:
92 Toyota pickup jerks and looses power but instantly seems fine when i let off the gas while driving had the same problem 8mo.ago and replaced the fuel pump (solved the problem) could it now be the fuel filter (didn't replace it when i replaced the pump)

Answer:
It is very possible that your fuel filter needs to be replaced. If after the fuel filter is replaced and you still have the same issue, you will be needing to replace the fuel pump again. Should still be under warranty.

Tuesday, September 9, 2008

2009 Nissan Maxima

2009 NISSAN MAXIMA


MSRP: $29,290
Gas Mileage: 19 mpg city / 26 mpg hwy
Engine/s: 3.5L V6, 24 valve, 290 hp @ 6400 rpm
Transmission: VAR speed Automatic

Though the chassis and sheetmetal are new, performance will come from the standard 3.5-liter DOHC 24-valve VQ-series V-6 engine that powered the previous-generation Maxima and nearly everything else in the Nissan fleet. This revised engine is now rated at 290 horsepower and 261 lb-ft of torque, an increase of 35 horsepower and nine lb-ft of torque over the 2008 Maxima engine. Will such impressive output make it a torque-steering beast? Nissan engineers say no and claim to have implemented appropriate countermeasures.

Though the chassis and sheetmetal are new, performance will come from the standard 3.5-liter DOHC 24-valve VQ-series V-6 engine that powered the previous-generation Maxima and nearly everything else in the Nissan fleet. This revised engine is now rated at 290 horsepower and 261 lb-ft of torque, an increase of 35 horsepower and nine lb-ft of torque over the 2008 Maxima engine. Will such impressive output make it a torque-steering beast? Nissan engineers say no and claim to have implemented appropriate countermeasures.

Sunday, September 7, 2008

When I tried to start it both batteries were dead.


QUESTION:

I needed to move my truck to another location so I could work on the speedometer problem. When I tried to start it both batteries were dead. A battery charger was connect but with reversed polarity. Before I could stop it the charger was tuned on. I immediately turned it off and disconnected it. I've charged the batteries but now the truck won't start. I found a 10 amp fuse burnt (in a panel in the engine compartment). When I changed the fuse some light on the dash panel came on - in a dim state- and stayed on, until I removed the fuse. The truck won't start although it will turn over. The ignitor light does not come on any more. This is a 1999 E-450 cube van with a Power Stroke Diesel. Can you shed some light as to what might have happened to the electronics of the truck My biggest fear is the computer.


ANSWER:

Because you hooked your charger up backwards it likely you blew one of the fuse links at the starter solenoid on the passenger side inner fender. I'm enclosing a schematic for the fuse links. Take a 12 volt test light and move down the harness where the fuse links are located and check for 12 volts. I suspect you have blown one or more.

Thursday, September 4, 2008

How to Scan for Trouble Codes (Check Engine Light)

How to Use an Engine Scanner The engine code scanner has made automotive repair easier than ever. When the check engine light comes on while driving it means there is a system that is having a problem. With the trouble code scanner you are able to retrieve the trouble code stored in the vehicles computer. Once the system has been identified replace the shorted senor or other repair and clear the codes out of the vehicle's computer. Once the codes have been cleared the computer will go into relearn procedure and run any number of system monitors to determine if the trouble has been properly repaired.

When the Check Engine Soon Light comes on , your first instinct is to pull over and check out the situation. This is not necessary. This is the vehicles way of letting you know at its earliest stage that an error has occurred. No need to panic. If you have been driving with that all annoying light on, remember this : Your gas mileage will improve if the necessary repairs are made.

Tuesday, September 2, 2008

My 2000 Caddy Dts is over heating. Yes it has a blown head

QUESTION:
My 2000 Caddy Dts is over heating. Yes it has a blown head gasket no doubt. However I want to solve the overheating problem that blew the gasket. The car overheats in 20 minutes. The upper radiator hose has burst twice. The water pump and thermostat are both new. I don't understand why there is enough pressure to burst the hose but not not venting from the reservoir cap at 16psi. Should the cap blow first before the hose. I feel there is a blockage some where. Can anyone help me with how the coolant flows so maybe i can find the blockage if there is one.

ANSWER:
From what you have stated, the problem would be the radiator cap. The cap should open at 16 psi and since it busted a hose, it had to be over 16 psi which means the cap should have opened up to releave the pressure into the overflow tank.

Engine Cooling System