How To Diagnose An Engine That Turns Over And Cranks But Does Not Start - Crank No Start Diagnosis




What do you think about this video?

Foroozan Ezzatpour: Where are you from friend? Which country?

altlandf: I have replaced a lot of items on my 89 s10 pickup. in the beginning of November I replaced the gas tank fuel hanger and pump assembly and fuel pump. The previous owner had installed a new fuel pump also. I t refuses to start. I get code 12 over and over again. so I just replaced the entire distributor. The truck still refuses to start. I can hear the pump run when you turn the key on. But the truck won't start. If you dump fuel into the throttle body the truck starts right up and then When the gas runs out it stall. How do I force the engine to start. The new computer system were supposed to make repairing a vehicle easy. yea right.

gunfighterdrummer: Guy knows his crap hahaha

ComedySparkHD: Great video! But where could you lead me in my issue? Spark, fuel, compression, timing are all good. I don't suspect air or anything emissions related considering my car ran fine until it stalled out of no where and has just cranked and cranked but not fired since then. It's left other mechanics stumped. Even a high tech scan tool with live data couldn't pick up the issue

Alberto Rodriguez: Can you explain the shutoff when the gas pedal is all the way down and it shuts down power to the computer?

Isaac Krumm: What if I am having it crank and turn over with no start but it will start after a few tries?

CZSQ QSZC: What if spraying starting fluid stats the engine and it then continues to run perfectly?

Eva Azaltando: Hey bro i have a 96 camry and im trying to fix it my self.. It doesn't start...when i spray fuel starter it starts for a bit. So i thought it was the fuel pump but i listened for it and i hear a humming inside...what could be the problem

Blissment: I had this issue on a 2012 chevy malibu, I just solved my own and trying to help others. I checked air filter, and my fuses which were good. I then disconnected my fuel line at the rail into a bucket to make sure my pressure was good to the rail at least (this will not check your injectors, just ensure that fuel is getting to your injectors.) I replaced my crank sensor early which I should have waited till after I checked for spark, I broke the old one getting it out so the new one had to do. Then I removed my spark plug and checked for spark. which I was getting. I then cleaned my Mass air flow sensor which is also your IAC valve on the snorkel to your air filter. Then I read online that if your throttle body is bad that it sends incorrect timing signals to your injectors which could cause a no start issue because they are firing at incorrect times. I changed the throttle body because they had no rebuild kits and it was the problem. I then ran my engine and it was rich from trying to start it so many times. I recharged my battery and ran it for 10 minutes to flush the engine of too much fuel and then ran at 3k for 5 minutes to make sure the extra fuel was gone. I turned off the car and turned it on without starting it and depressed the pedal to the floor and hold for 30 seconds and then released a few times listening to make sure the valve was working in the throttle body. Let it sit for 1 hr then retried and we are gold my friends. hope this helps you diagnose your own problems. I want to let you know that if you feather your throttle and your car almost starts or starts this could definitely be your issue.

Sukhjit Josen: Can you do a video on fuel injector system

Deacon Lewis: Why are all the mechanics on this site working on cars older than baseball

Kh 40: In case the low pressure add oil to cylinder through opening a candle primers

DaBomb Smokes: I found this video very informative as my 97 Toyota Corolla would turn over but not crank this morning. Yesterday it was fine, so it was totally unexpected.
I will definitely try these diagnostic tips!
I supported your channel.
Thanks so much for sharing!

Raza Pervaiz: My car crank but no start when I press the gas pedal all the way down car starts through heavy smoke out and when I release the paddle car die help me please.

mr.clean: This is the best video I have seen. Can't wait to go through the nonsense on my truck
.I'm confident that if I can't get it started. To the yard it goes. Thank you for sharing.

phuong nguyen: God Bless you !!

Johnny John: Awesome!!! U helped me to discover that I don't need a coil nor a igniter on my 1991 4runner v6. I started first with the coil cus I was sure that was the problem. I was wrong. Then I checked my spark plug cable for piston #1. It sparked very weak & inconsistent. I won't assume it's the distributor cap or rotor because I've barely put together a complete rebuilt 3vze engine. My problem may be in installing my distributor one spline off and causing it to be out of timing. Or my timing belt may be off by 1 tooth/spline on either a camshaft sprocket or the crankshaft sprocket. But this video really helped with my no spark condition. Thanks.

huss/abbas: Thank you great video

Luke Richard Graham: Hi there have a strange issue. My car intermittently does not start when it's been standing for an hour, but when its warm its starts easily

Marnel F. de las Alas: Hello Sir.. What to do on a Mazda 626 model 1993 that cranks but won't start? No spark coming out on the spark plugs..

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How to Diagnose an Engine that Turns Over and Cranks But Does Not Start - Crank No Start Diagnosis