Intermittent Problem starting

Main relay

Have you noticed that this starting problem happens when it is a hot day and you are making lots of quick trips...like to drop kids off at school...park and turn off, then get back in and drive to the store, park and turn van off. Return to van after a quick trip into store and van won't start. You sit there for a few minutes running through the Freak out list in our head that could be wrong. You try one more time and it starts. Bingo. It is your main relay. I now know that if I wait for 10 minutes or so, the van will start again, and off I go. I do not want to go through the expense of replacing the main relay. This is a common problem...according to the forums.

I don't think it is caused by a hot day. I live in Maine, and we don't have many hot days. The problems is very intermittent, but it has happened at least once in the fall when the weather was in the 40's. I can tell you that if I leave it for a period of time (10min - 2 hours) it will usually start up on its own without any other action. Also, I have moved the van back an forth a few inches and that seemed to cause it to start. Still think it is the main relay?? Ron

any answers to if you change the ignition and main relay and still will not start????

transmission lock-out switch. Move out of park and back into park and retry. moving car has similar effect by changing torsional stress on lock-out.

I hace an 1995 honda odyssey,wont start,ir crank,and turnos back of,

Honda Odyssey 2004 go for a 20 minuts ride once is regular warm temperature I turn off engine then try turning it back on crank for like 5 seconds and then turns on

it has been some time since I have dealt with this problem. However, it seems to be caused by the ignition key imobilizer. I get a flashing key warning on the dashboard. i have found a workaround to temporarily by-pass the imobilizer problem online. if I had more money to spend on the vehicle, I would get it properly fixed by replacing the defective hardware. However, it is much too expensive to properly repair it.

I have an 07 Odyssey that intermittently won't start. It will start most of the time, but every once in a while when the key moves to start, everything in the van dies and the battery is shorted to ground (I have taken the cable off and it arcs as well as only registering a few volts across the battery). If you remove the battery terminal and arc it a few times, then it will start again if you try. Happens when its cold/hot/wet/dry, so I don't think its weather related. Just bought a new NAPA battery. When it finally does start, the radio makes you enter a code like if you totally lost power (even if I don't unplug the battery). I'm leaning toward the ignition starter switch, but can't see how that would short to ground. Any ideas?

I have a 2008 Honda Odyssey we have put a master cylinder put new brakes on both sides in the front and you can ride the van or about 10 minutes and then when you try to move it it won’t move is like the brakes freeze up so what could Debbie please let me know

My honda odyssey 1999 die after about 15 minutes it fired up. then i won't be able to start again for another 30=40 minutes then it fires again. I can't even move since it keep shut off 15 minutes after i fired it up. any help?

Have that intermittent failure to start with our 2006 Odyssey Touring. Have suspected that it has to do with the security system. Often pressing LOCK and UNLOCK on the REMOTE will "fix" it. Don't know yet which to press first. A couple of times pressing the PANIC button "fixed" it. Am STILL looking for the actual cause and cure.

I have an 07 Honda Odyssey with intermittent trouble on starting. I have vacillated back and forth between thinking it's a battery issue or a security issue. I am clueless on the culprit for sure.

When that happens again try to stat you van on neutral if that works that means is the transmission switch is going bad, the switch is located on the transmission on the driver's side off the car

This is happening with our 2002 Odyssey. It will just quit running at stop signs. My grandson in law, had us take the gas tank cap off, and start it with the gas cap off. It starts up just fine and runs great, til it happens again. We are trying to find out why it happens, as we are on the interestate a lot and don't want to get hit if it stops in the middle of the freeway.

https://youtu.be/HcB-cADLQEc See this video till the end and it will answer everything... This was happening to our Odyssey as well changed the part.. Haven't had a problem with it since

I have a 2000 Honda oddessey van I fixed the fuel pump and starter but this green flashing key keeps popping up idk what it is