Tip & How-To about Honda Accord

Myth about warming up ur car before driving it.

Todays fuel injected cars do not need to be warmed up before driving. In fact it will do more harm since idling is not good for any vehicle. This also wastes fuel. You should drive it right away to speed up engine warm up.

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whatis a idle motor an would it mack my truck shake going from overdrive to drive

An Idle motor on a fuel injected vehicle is virtually the same thing as the choke used to be for a carburated engine. It is basically a solenoid valve that adjusts the air fuel mixture to be rich while an engine is warming up to operating temperature. Once the engine is warm the idle motor is taken out of the mix and the computer begins to control the air fuel mixture. And no I don't believe it would have any effect on your truck shifting into or out of overdrive. Sounds more like torque converter clutch shutter.

Dec 02, 2012 | Cars & Trucks

1 Answer

1994 Samurai fuel injection. 2800rpm until warm up, then idles down

Check the operation of the coolant temp sensor.
Check the thermostat is also working properly.

May 18, 2012 | 1994 Suzuki Samurai

1 Answer

I have a 99 mazda 626 runs and starts fine but stalls when coming to idle i already changed maf sensor

check and or clean the (IAC) idle air control, this is what controls idling on most of todays cars and light trucks. if iac is removed for cleaning. clean out where it mounts to engine or fuel injection unit. good-day !

Jan 31, 2012 | 1999 Mazda 626

1 Answer

jeep liberty 2002 will not idle when you first start it if you make it run at about 2000 rpm for about 3 min it will stay running

Check temperature sensor. I don't remember if your vehicle has two (one for the gauge, one for the computer) or a single unit that feeds both. If seperate (your parts house should know this) change the one that feeds info to the computer.
Essentially this sensor does the job of the choke on the carburetor on non-fuel injected vehicles, by allowing additional fuel into engine on cold-starts. After engine comes up to operating temp, it reverts back to normal run mode... (why you need to warm it up at excessive rpm before driving!) Good luck!

Dec 17, 2008 | 2002 Jeep Liberty

2 Answers

warm up

The high idle is caused by the choke and the high idle on the carb. It is working normal and you do won't to warm up this motor before going. When it is warm and you hit the gas it activates the choke pull off to bring the idle to normal. Your mechanic is used to fuel injection that will control the fuel/air mix according to temp. I still let my injected cars warm up so the oil can thin a little. If you jump on the highway with cold thick oil it can all wind up in the to of the motor.

May 16, 2008 | 1990 Chevrolet Camaro

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