Why does it take so long to start a 300K engine?
Sure why not. On high mileage engines (200k to 300k) the pistons ring can wear causing low compression which increases crank time and causes hard starting. This is because the compression ratio is low and it takes time for the engine to gain enough speed cranking by the starter to ignite the fuel air mixture.
How many miles does it take to break in a four stroke engine?
Two to five hundred miles is frequently required to completely break-in a four stroke. For a closely toleranced street four stroke it often takes 1000 to 1500 miles or even more! I dump the oil and filter in a four stroke after the first 75 miles, again at 200 miles, 500 miles, 1000 miles and each 1500 miles thereafter on a street engine.
How long does it take for a car engine to start?
Description: An engine should start up and run in about 2 to 3 seconds of turning the ignition key to the crank over position, if not you have a hard starting condition. This guide will help by starting with simple fixes and conclude with the more difficult.
When does the service engine soon light come on?
The computer is programmed to trigger a “service engine soon light” when the sensor has failed for a predetermined amount of time, say one minute, it only takes an intermittent shorting sensor one second to stop the computer system (stall engine).
What causes engine crank time to be extended?
Another common reason for extended crank time for engines is a vacuum leak. Engine vacuum must be a sealed system which the mass air flow and map sensors depend on to send feedback information to the main computer which in turn sets the stage for the engine starting sequence.
Why is my car engine taking so long to start?
If the engine takes more than 4 seconds to start there is a problem in the way of a leak, low pressure or reference to the computer problems.
Sure why not. On high mileage engines (200k to 300k) the pistons ring can wear causing low compression which increases crank time and causes hard starting. This is because the compression ratio is low and it takes time for the engine to gain enough speed cranking by the starter to ignite the fuel air mixture.
What is the rating of the cold start injector?
Average rating from 141 customers who received a Car is hard to start Inspection. The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles.
Why is my car hard to start cold or runs poorly?
Those are your main causes of cold start enrichment failure. I suppose a fuel pump could be weak, and not be able to deliver enough fuel. Or a fuel pressure regulator could be going out. Generally speaking, any other cause of poor running/a hard start cold would also cause problems while the engine was warm.
Can a lawn mower start without starter fluid?
The mower will not start unless I spray starter fluid. It wouldn’t start at all, now after all the above it will start but only with starter fluid, then it runs until it is killed and will not start again unless I use starter fluid. I have read that it may be the automatic chock, how would I change that?
Is it hard to start, when cold starting?
Click Here to Register for Free! 1988 L98 Auto. recently aquired. hard to start from cold start. literally 3-7 seconds on the starter. New wires, not plugs. new cap and rotor. trust me being a Jeep guy I know oil smoke smell. Once she is running, she starts slow then idles fine. after that no performance issues.
Can a car cold start without starting fluid?
Cold: just cranks, no start. Cold could be anywhere from 80f-50f ambient so far. So to start it cold I take the air filter off, shoot on shot of starting fluid in it and it starts up and runs perfectly. Anyone want to guess why this is? Thank you so much for any help you can give.
Can a weak F pump cause a cold start?
I also like the idea of checking the 9th injector used on the one or two year corvettes, this injector will cause the exact same symptom as a weak/bad F Pump or inoperative relay. This injector is sometimes referred to as a “Cold Start Valve” also called a “Cold Start Injector”. Very popular item in many systems made by Bosch.
What’s the best way to start a car cold?
The next time you go to start the engine cold, turn the ignition switch to the run position so the dash lights come on for two seconds, and then turn the ignition switch off. Repeat this a half dozen times and then try starting the engine.
Why is my Mercedes Benz 300 not starting?
However ther are many causes here, poor ignition coil, fuel filter, fuel pump etc etc. You will need to check these items when the car is in a ‘failed state’.
What’s the problem with my Mercedes 300 CE Coupe?
25 people found this helpful. i have a 300 ce coupe 1988 starts when cold let it run to warm up switch it off then wont start and my idle seems to fluctuate never runs smooth and when im driving it come to a stop it stalls. any advice on this problem will be thankful. 16 people found this helpful.
What causes a car to have a hard start?
This guide will help by starting with simple fixes and conclude with the more difficult. What goes wrong? Normal wear and usage can cause a hard start condition due to lack of fuel pressure, poor intake air management, false readings to the car’s computer or weak spark.
This guide will help by starting with simple fixes and conclude with the more difficult. What goes wrong? Normal wear and usage can cause a hard start condition due to lack of fuel pressure, poor intake air management, false readings to the car’s computer or weak spark.
Why is my Mercedes Benz starter not working?
Often times, when the starter is defective or seizes up it will blow out the fuse that protect the starter circuit. Another thing that you can try is to hit the starter with a rubber hammer a couple of times. Depending what kind of starter problems you have, the starter may work a few more times.
What should I do if my Mercedes Benz won’t start?
Start the car and you should be able to get around 60 psi. When the engine is running and when you turn off the engine the pressure should stay steady. Always perform this test on a cold engine. Next, make sure that the fuel injector connections are secure and not loose. Check the fuel pump and the fuel pump relay.
What should I do if my engine won’t start?
You should hear the pump start in the fuel tank for a brief period and then stop, cycle the key “OFF” then “ON” again without cranking the engine over while listening to the fuel pump, and do the cycle one more time to make three subsequent cycles.
What to do when your M103 engine wont start?
One of the most overlooked parts on the engine. It’s relatively simple to replace, with a few Allen screws around it. Make sure to mark your spark plug wires when you remove them as confusing the wires will result in a bad misfire when starting the car, and/or your car just won’t start.
Why does my 1990 Ford 190E not start?
You may be surprised to see what Kent found was the cause of the starting problem he was having on his 1990 190E 2.6. The car would start and then quit. Or it would start and round weak and rough for a minute before coming to live. It would also idle too low during cold startup. The problem turned out to be a simple and inexpensive fix.
If the engine takes more than 4 seconds to start there is a problem in the way of a leak, low pressure or reference to the computer problems.
Why is my car surging at idle speed?
When an engine’s computer can “hunt” or “surge” at cruising or idle speeds it is searching for program compliance, there is a problem elsewhere in the system.
What to do when your car engine is hard starting?
A visual inspection of all vacuum lines inside the engine bay you may discover a broken, torn or dilapidated hose that needs replacing and for harder to find leak a smoke tester can be used or when the engine is cold a can of carburetor cleaner which will cause the engine to idle normal or speed up for a brief period.
What should I do if I have a hard start?
If you encounter the same hard start when cold and the FLEX FUEL DATA reading is back up to 70% or more, your next step is to check fuel pressure. Check fuel pressure. Fuel pressure must be at least 55-60-psi.
Why is my Chevelle 350 hard to start?
Fuel pump check valve doesn’t maintain pressure in the fuel rail so it boils and then you have to crank excessively to get rid of the vapor before it will start. Bought a 1972 Chevelle 350 a couple years ago. Every time I drove it it wouldn’t restart easily or sometimes not at all unless I waited a while.