2004 Toyota Sienna 3.3L wont start, just cranks

80

Asked by Jordan Sep 21, 2013 at 08:37 PM about the 2004 Toyota Sienna 4 Dr LE Passenger Van

Question type: Maintenance & Repair

Car will not start. Cranks all day but never fires. Have checked fuel, thats good. Checked
spark, thats good. Intake system no problems. Took to dealer they said broken timing
belt. Pulled front of motor down wasnt broken they then changed story to it jumped timing.
Replaced timing belt and water pump. Also replaced crank sensor. Still will not fire. Im out
of ideas at this point. Any help would be greatly appreciated.

13 Answers

200,925

Do compression test to see if you have any bent valves. I believe your model is an interference engine and if so and it jumped time you might have some bent valves.

10 people found this helpful.
200,925

Those seem to be fine. What about the others?

2 people found this helpful.
80

About to do those now will let you know in a few.

2 people found this helpful.
200,925

Ok did a little digging. Your compression ratio is 10.8:1 on that model engine. Your proper psi operating range should be 162 psi to 216 psi per cyl. Would like to see your psi to be within 5 to 10 psi of each other and on the top side of the operating range. Although your psi appears to be low on the front bank and varying greatly from front to back bank I don't really feel that its a bent valve issue causing them to be low. Normally with bent valves you will see some with 0 psi per cyl. In my opinion your engine should still start with the psi numbers you posted.

9 people found this helpful.
200,925

In the beginning were you driving it and it went dead or did you just try to start it one morning and it would not start? Was it acting differently than normal the last time it did start?

11 people found this helpful.
520

Hi Dandy, My 04 sienna I was driving it and it went dead on the road and would not starts after few cranking (starts within a second and died). Few days earlier I drove it and died once and when starting back, it start fine all day. next day same routine until today.. Any ideas what the issue is, will really appreciated.

10 people found this helpful.
30

I was having the same exact issue, vehicle fell dead while running 02 sienna. had 2 issues. #1 fan belt cut through harness going to crankshaft sensor. #2 rear camshaft sensor. after I repaired harness vehicle still wouldn't start but I had injector pulse and ignition spark. replaced the rear camshaft sensor and it fired right up. check to make sure you have ignition spark and injector pulse, will have power when key is on and pulse ground when cranking. if you have both will be your cam sensors they tell the computer when to fire on # one

3 people found this helpful.

Have a '04 sienna plus running and every now and again the starter will stick with it off or on or key out I noticed that when Angel of the ignition back and forth to ACC to off the starter would not be engaging anymore I replaced the starter cuz I got burnt up the first time and ran decent for about a couple weeks did it again brought it back home I will not start again It will crank and no start I changed the relays majority of them I checked the fuel I got power going to my injectors and fuel coming up to my fuel rail I also checked my coils I seen some slight cracks and instead of trying to place all of them cuz I know it's costly I put some super glue over all the possible cracks pulled the plugs and delicately cleaned them for better connections It almost turned when I cranked??

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