2007 Camry won't start when warm

Asked by Feb 21, 2017 at 02:56 PM about the 2007 Toyota Camry LE

Question type: Maintenance & Repair

My camry has developed a issue starting in the past month. When the car
is driven around and re-started 2-3 times, each time it gets slightly harder
to start. After about 3 times it no longer fires up. It will crank and struggle,
but not start until the vehicle has cooled down (about 35 mins).

-It always starts strong when cold.
-If you repeatedly turn the engine off and on within a few seconds, it will
crank and fire up most of the time. But if you let

It has a CEL for Catalytic Converter. I replaced the crankshaft sensor but
no fix.

10 Answers

41,295

Try replacing your ECT sensor. If no luck there, clean your throttle body and IAC with throttle body cleaner. Check Youtube for how to vids. Also try to clean your MAF with MAF cleaner. Post back with results......

2,020

I suspect a fuel delivery problem. Next time this vehicle fails to start...smack the bottom of the fuel tank with your hand. A fuel pressure test is in order.

A buddy of mine smacked the fuel tank, which didn't help starting. Neither did priming with the ignition key. I'll get the fuel pressure test done.

2,020

Typically what we do is install a fuel pressure gauge and a scan tool and road test the vehicle. We bring along a spark tester and a noid light to check fuel injectors pulses and spark during the no start event. You might suggest whomever checks fp...to also check EXHAUST SYSTEM BACK PRESSURE. A bad cat could be the root cause of the issue.

Many thanks! I watched this video and the knocking CC can be heard in my car too. https://www.youtube.com/watch?v=zovqAeGspTs It's the exact same sound, and only when you rev it.

I have a 2007 camry every 3 or 4 months when i cut the car off it won't start back up till after 20 minutes

UPDATE: Codes and symptoms say it's my MAF sensor. I cleaned it and that helped for a week. I think it's faulty....

2,020

OK...good diagnosis. Do not forget to check the PCV system. A dirty oily MAF means that clean air going into the engine is contaminated with oil droplets from a faulty dirty PCV valve or hose. What Engine in this vehicle? Is this engine consuming a lot of motor oil?

2.4 L 4-cylinder on a 2007 Camry LE, which has long been known for the oil consumption issue with this engine. Yes, my vehicle goes through 1 quart every ~200 miles at highway RPMs. I'm not kidding. No oil leaks...just bad pistons from my understanding...

2,020

Bingo......you are correct. Toyota will fix that oil burner for FREE...if it has less than 150000 miles and is less than 10 years old. You might consider running your Vin and get a history on previous owners and repair history....an...most important......when the vehicle was first sold. If all else fails...there is a Class Action Lawsuit you can join. Let us know your thoughts.

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