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Engine cranks won't start

Tiny
SZALKUSKT
  • MEMBER
  • 2001 TOYOTA SIENNA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
I was driving down the road as if someone turned off the ignition switch. It did not sputter or anything. It just cut off. It only cranks now but won't fire up. I checked for codes and no codes are present so what should I do?
Wednesday, April 21st, 2010 AT 1:25 AM

41 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi szalkuskt, Welcome to 2carpros

You need to establish if its a fuel or spark problem- If both fuel and spark is present-check the valve and ignition timing.

This guide will help walk us through the testing

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please run down this guide and report back.
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Wednesday, April 21st, 2010 AT 5:40 AM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
There are no plug wires so I guess I would have to take a coli pack out of the head and put a sparkplug in it and then ground it out to check for a snapping blue spark. Also where are the important fuses so I can check for to see if they are blown? Also, I need to get a fuel pressure gauge to test for fuel pressure, what is a good inexpensive kit to buy and also maintenance manuals on how to do it.
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Thursday, April 22nd, 2010 AT 7:11 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do the spark test 1st then follow it with the fuel pressure check Do you hear the fuel pump when you turn key On? If so do below.

When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?
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Thursday, April 22nd, 2010 AT 7:57 PM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
The pump noise should be in the tank? Also what is a good fuel tester to buy, are all the sizes of test fittings standard on the rail?
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Friday, April 23rd, 2010 AT 2:52 AM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
I disconnected the battery for 2 days and then I reconnected it and the van started right up first time and ran and drove fine. What could have happened
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Saturday, April 24th, 2010 AT 2:56 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Is the security light flashing? if so check out this guide

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.
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Sunday, April 25th, 2010 AT 3:35 AM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
My sienna cut out again today and disconnected the battery waited 10 min the reconnected it and it started right up and no codes were present. Any way to check a relay or is the a problem the computer is memorizing?
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Wednesday, April 28th, 2010 AT 1:23 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Bring it in and get the computer flashed
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Wednesday, April 28th, 2010 AT 1:10 PM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
What does flashing do and usually how much is it? Is it cheaper to buy a new computer? What do you think is happening that my computer might be kicking off the engine? Can this type of problem be other than computer related?
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Wednesday, April 28th, 2010 AT 2:55 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Next time when it dies out do below immediately don't disconnect the battery to fire it back up and come back with some results, in the event it dies out again bring it in

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
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Wednesday, April 28th, 2010 AT 4:35 PM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
Can you tell me what flashing does and why it might help me and also how much I should expect to pay?
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Wednesday, April 28th, 2010 AT 4:55 PM
Tiny
RASMATAZ
  • MECHANIC
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Dunno if its gonna help you -flashing it is fine tuning it, clears glitches your best bet is bring it-in this is complicated problem being it an intermittent I cannot propvide you a fire answer. Sorry!
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Friday, April 30th, 2010 AT 1:13 PM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
Well right now it is in the "no start " condition and I think I am going to tow it to the dealership on Monday while it is in the "no -start" condition and that way they can have a better chance of diagnosing it. Sound good?
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Friday, April 30th, 2010 AT 4:17 PM
Tiny
2 LINSEY
  • MECHANIC
  • 287 POSTS
Hi szalkuskt, thank you and good luck. Let us know what you find.
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Wednesday, May 5th, 2010 AT 11:42 AM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
VERIFY SES LITE OFF UPON ARRIVAL. PERFORM OBD2 SYSTEM CHECK, NO DTC'S IN

HISTORY. PERFORM IAC VALVE COMMAND OPERATIONS, 25% ENGINE DIES. REMOVE

INTAKE DUCT, LOTS OF CARBON BUILD UP ON THROTTLE BLADES & IN BORE. RECOMMEND TO CLEAN

THROTTLE BODY OF CARBON BUILD UP FIRST THEN RECHECK OPERATION. IAC VALVE MAY BE

INTERMITTENTLY BINDING INTERNALLY. IF AFTER CLEANING OF THROTTLE BODY CONCERN IS STILL PRESENT, RECOMMEND TO REPLACE IAC VALVE.***NOTE: COMPLETE TIMING BELT REPLACEMENT & 90,000 MILE SERVICE DUE.

*IAC VALVE PT #22270-0A060

*IAC VALVE GASKET PT #22215-20010

*THROTTLE BODY GASKET PT #22271-0A020
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Friday, May 7th, 2010 AT 12:47 AM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
Van would not start again this morning. I guess I am going to change the IAC, Can someone point me in the direction of the manual how to replace that IAC? I have one ordered to ship to my house.
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Saturday, May 15th, 2010 AT 12:57 AM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
If the iac is not working would it bring on a code? I took the intake ducting off today and try to start the engine and it would not start. Why did the dealer tell me the iac is going bad? Itnever produced codes
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Saturday, May 15th, 2010 AT 2:22 PM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
Ok I got the van to start then die. I hooked up my obdII scan tool to scan for codes and no codes but hen it would start and run, but run funny. Then I noticed I had the OBD II tool still plugged in and when I unplugged the scan tool the van died. Tried to start it back up it would NOT start. Tried starting the van with the scan tool plugged in and it started up but ran a little wierd and the temp gage would fluxuate up and down.
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Sunday, May 16th, 2010 AT 7:48 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You need to bring the computer in and get it tested this is as far as I can take you thru the internet

IACV could be bad and won't give a code, don't always rely bcuz the CEL didn't read a code for the IACV that's its still good-try replacing it and go from there.
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Sunday, May 16th, 2010 AT 10:12 PM
Tiny
SZALKUSKT
  • MEMBER
  • 274 POSTS
Are you thinking the computer is bad? Any reason why with the OBDII plug plugged in that it ran? Can I remove the computer and buy one and install it without going to the dealer? I have seen ecu exchange places on the internet. Remove the computer and take it in or drive my van to the dealer and play the dealership service department game again?I really don't have faith in the dealer although, I am going to change the IACV with a brand new one bcuz I ordered one already. Where is the computer located anyway?
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Monday, May 17th, 2010 AT 2:21 AM

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