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Anonymous Posted on Sep 26, 2012

W124 230E problem starting cold

Problem starting up at cold temperature, but idling and acceleration okay at normal temperature. Suspect problem to be electrical sensor or...

5 Related Answers

Anonymous

  • 3 Answers
  • Posted on Jan 12, 2009

SOURCE: Rough idle, Car shakes, sputters and misfires upon acceleration

It sounds like you may have a problem feeding the fuel to your engine, I had the same problem with my 89 RS. All the 1989 model's fuel systems were recalled. I think you may need a new fuel pump. The fuel pump is located inside the gas tank in the rear of the car right under the rear axle. The fuel pump itself isn't too expensive, but with other small parts such as the electrical harness upgrade and fuel filter and the labor you should be looking somewhere in the $500 range. I hope this helps.

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Divemex1

  • 5 Answers
  • Posted on Feb 10, 2009

SOURCE: engine surging , won't accelerate over 3000 rpm ! IS chocking is like is not enogh gas

Do you have a check engine light with this?
What can happen is a code has caused the engine to protect itself. For example in a low coolant situation when the engine heats up too much, the engine can Knock causing an Engine Knock fault.
If that occurs you will recieve a fault for each of these items. Fill the engine with coolant. Then reseting the code will let your engine accelerate normally.

Anonymous

  • 29 Answers
  • Posted on Apr 24, 2009

SOURCE: Car Overheats after 12 to 15 minutes of running. Temperature decreaes when I accelerate.

your fan is the problem...it's not turning fast enough to cool the engine off. I need more info on what type of fan you have....elec fan or a clutch fan?

Anonymous

  • 38 Answers
  • Posted on Jul 31, 2009

SOURCE: 1989 Chevrolet C1500 with 5.7L V-8. Engine dies

fuel pump is working but when accelerating it doesnt pump enough fuel up to the engine then it will fall on its face if it is a electric pump you may have to drop the tank if it is inside and replace it if it is on the engine replace it thats what is exactly wrong with it

Anonymous

  • 1 Answer
  • Posted on Sep 27, 2009

SOURCE: 1986 Honda Accord DX - too high idle on cold start

1986-1989 Honda Accord with Carburetor have a very bad habit that is little known even by most mechanics but easily fixed at home. The vacuum port on the choke opener that is connected to the intake manifold and both vacuum ports on the fast idle unloader get plugged up with nasty hard carbon almost as hard as metal. When this happens the choke sticks closed and the idle sticks on fast idle when the engine is cold and nobody can figure out why. All you have to do is attach a small drill bit to the end of a flexible socket-driver extension and put it in a variable speed drill that will let you run it real slow and carefully drill out the vacuum ports that are plugged. After they are nice and clean use a vacuum pump tester to make sure the choke opener and fast idle unloader are working before putting it all back together. It's amazing how much better the car runs after cleaning out those ports.

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Completing drive cycle for catalyst monitor to reset

To perform an OBDII Driving cycle do the following:
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General Motors Driving Cycle
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Idles high when cold 2004 jetta 1.8 t

This is normal. The ECM monitors engine temperature and increases idle when it sees the engine is cold. The ECM sets the idle back to normal when engine temperature rises.
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I have a loss of compression after the car warms up. Acts like a bad catalytic converter but its not. The car starts fine and it idles fine. Runs normally until warmed up then no acceleration. Any...

Sorry no idea without my head under the bonnet to have a look.I would suspect a sensor not reading when it gets warm ,plug a scanner in and switch it to read data ,start car from cold then watch whats happening to the temperature and MAF and all the reat of it this will tell you what sensor is at fault
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1996 Jeep Cherokee 4.0 L has trouble accelerating

often times the engine needs to warm up to normal operating temperature. this varies from makes and models. if you cant wait that long, having it idle for approximately 5 - 10 minutes should at least lessen the acceleration problem, but the longer you wait the better it will be on the engine.
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Overheating

if it cools down at idle this suggests the cooling fan is working...check temperature of upper and lower radiator hoses if one is hot while the other is cold suspect thermostat...if they are equal...remove radiator cap while engine is COLD and start vehicle check to see if as the car warms up the coolant in the radiator is swirling or circulating...if not suspect waterpump
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Cooling fan problems

Hi Dave the ECU receives messages from sensors, one of which is a temperature sensor. When the sensor responds to a temp higher than the normal operating temp the fans are then and only then supposed to operate. They will switch in for a brief period and then turn off again. The idle speed is in direct relation to the cold start up idle requirements and specifications. When the engine is cold the idle speed will automatically increase and as the engine achieves operating temp, the idle speed will decrease inthe way you have recorded. If you start the engine and allow it to idle until normal temp is achieved the fan should cut in. The way you've desribed all systems are A okay!. Regards John
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Engine starting problem.

run the fault codes
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Engine will not idle and run when starting in cold weather

Have a mechanic take a look at your throttle position sensor and engine idle sensor. Make him manually adjust them as opposed to just putting in new ones. It may require that you have to have a higher idle than normal. Your underlying cause is going to be that I am sure you have a lot of miles on your engine.
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Hesitation or stumble during acceleration

take your car for a tune up
if they are carburetor type motors you may need your carbie cleaned and a tune up
if you clean it your self with carbie cleaner it may increase in idle speed this is nothing to worries about it is a simple adjustment
with a carburetor type motor they tend to idle higher when their cold this is the automatic choke kicking in and normally it should happen till the car is a bit warmer and the accelerator has been depresses
although a car should idle at 800 rpm my paddok car dose when it is cold it idles at 1200rpm i like it this way as the car warms up quicker as i will not drive a car while it is cold
hope this helps
ricko
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