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hard start after sitting 10-15 min

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Old 06-04-2012, 03:55 PM   #1
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hard start after sitting 10-15 min

Hey guys. My 96 Taco is hard to start after sitting idle for 10-15 minutes. I've read some discussion concerning hard hot starts but could not find my particular situation. Has anyone else run into this problem. I have the ol' 24E in mine. 240k and still strong. Thanks
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Old 06-04-2012, 03:59 PM   #2
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so is it easy to start after 15mins? is that the question? or you mean any time after 10mins
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Old 06-04-2012, 04:10 PM   #3
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It starts easily immediately after shutoff. But if it sits for 10-15 it acts as if it is flooded. If I allow it to cool off for a while (@ 1 hour) it starts fine. It does this particularly on hot days.
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Old 06-04-2012, 04:12 PM   #4
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Pardon my lack of knowledge, but does this have injectors or a carburetor?
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Old 06-04-2012, 04:12 PM   #5
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Had the same issue with my 98 which also had the 2.4, never figured out what the problem was Good luck.
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Old 06-04-2012, 04:16 PM   #6
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that's weird! but seems another person has had this experience so you're not alone, has it always done this? or recently, maybe leaky fuel injector
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Old 06-04-2012, 04:17 PM   #7
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Quote:
Originally Posted by scotrinaf View Post
Pardon my lack of knowledge, but does this have injectors or a carburetor?
injectors
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Old 06-04-2012, 04:24 PM   #8
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Have you had the injectors cleaned???
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Old 06-04-2012, 04:25 PM   #9
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Throttle body injected. I've experienced the problem for @ 4 years. It's obviously not a huge problem since I've learned to work around it. But occasionally I'll stop somewhere that takes me 10-15 min before I'm off again and it happens.
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Old 06-04-2012, 04:28 PM   #10
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Haven't had the injectors cleaned since it runs great otherwise.
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Old 06-04-2012, 04:30 PM   #11
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Quote:
Originally Posted by flyboy20 View Post
Hey guys. My 96 Taco is hard to start after sitting idle for 10-15 minutes. I've read some discussion concerning hard hot starts but could not find my particular situation. Has anyone else run into this problem. I have the ol' 24E in mine. 240k and still strong. Thanks
2RZ? (2.4l)
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Old 06-04-2012, 04:33 PM   #12
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Quote:
Originally Posted by flyboy20 View Post
Haven't had the injectors cleaned since it runs great otherwise.

Just a physics theory...

If the injectors are partially clogged, the heat may be causing the debris in them to swell causing tighter clogging... Once the engine cools off, then the swelling goes down...

The reason it would re-crank right away is that the gas already there hasn't had time to dissipate, however, in the 10-15 minute time frame, the gas does have time to dissipate causing it not to crank, and new gas cant' pass through as easily for the startup fuel needed...

I'm no expert, but that's my theory...
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Old 06-04-2012, 04:36 PM   #13
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2RZ 2.4 is correct.
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Old 06-04-2012, 05:01 PM   #14
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Cap & rotor or coil packs?
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Old 06-05-2012, 07:28 AM   #15
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Coil packs... at least there are on mine. Don't know if that changed in 01 or not but I doubt it.
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Old 06-05-2012, 08:06 AM   #16
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Coil packs... at least there are on mine. Don't know if that changed in 01 or not but I doubt it.
Early tacos had cap and rotors before they went to full coil packs.
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Old 06-05-2012, 10:24 AM   #17
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I would start with a seafoam treatment. It runs fine at idle and at speed?
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Old 06-05-2012, 10:30 AM   #18
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I've had this issue for years. It is common and no clear remedy for many. It does seem that different failures can cause the same symptom. The local dealer says it's a problem in the fuel system - regulator, pump, filter and they swap 'em out until fixed. In many other cases, I think it's a sensor- computer issue though not clear about the mechanism. In my case, pulling the connector to the air temperature sensor will allow it to start right up in that situation, showing that the computer is getting bad info or conflicting info. Or else it's a bug in the programming. I swapped out the sensor but it did not fix the problem. I tested that and all other temperature related sensors, but all test fine (as specified in the FSM). I'm always looking for more clues, but for now, I just leave the air temp sensor disconnected in hot weather and problem solved. Don't know what it does to engine efficiency, but seems to run the same otherwise. hope that helps.
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Old 06-05-2012, 12:55 PM   #19
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My 98 does this occasionally. Only after I drive it and park, then stop for a short time (1-10 mins). It always restarts after a 10-30 second wait, but its annoying. Even if I rev the engine, put it in first, and drive, if it wants to die, as soon as it hits idle again it dies....
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Old 06-05-2012, 04:56 PM   #20
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My 96 2.4l did this. Never solved it before it was bought back but sea foam didn't help. Spark plugs and wires were good and only 115,000 miles.
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