Car shuts off while going downhill?

[hybrid90]

Car shuts off mainly going downhill in neutral. This happened to me twice this week. Whenever I’m exiting the freeway and it’s a downhill exit, I would put it in neutral and cruise around 30mph to slow down and hit the brakes to a stop and my car would just shut off! Right after that, I just restart and it would be fine again… what the hell?

Anyone have similiar problems like mine? Anything to do with the clutch? I’ve check my battery cables and they are on tight… please help cuz it’s embarrasing and sometimes dangerous cuz it does kinda take awhile to restart cuz it kinda cranks a lil bit before restarting…

[RiccyLSR]

uh i know it probably fine to put it in neutral and drive downhill but i wouldnt do that.

Base of the speed per gear if u are going down a hill and u are going at 35mph for example then u would want to be in 2nd gear while it helps slow down also but then u have to slow the speed down also to about 15-20 mph.

Well as far as your car dying like that i cant really say it never happens to me but i never did it on a steep hill again way.

[fcm]

It could be any number of things, no power to the injectors, no power to the fuel pump, no power to the ign. system.

The problem with intermittent problems is it must fail when testing to know whats wrong.

I have a little “test light box” I made, four 12V light bulbs, with a lighter plug for power and ground, [3 bulbs are grounded and one has 12V going to it] then there are 4 long leads, one (black) is connected to the bulb with the power going to it, [if I ground the lead the bulb will turn on] the other 3 each have a lead (red, yellow and pink] if I connect them to 12V+ the corresponding light will come on.

I will set it on the dash, plug it into the cig lighter, and then connect the leads up to things I want to test.

In your case I would connect the red to the black/yellow going to the “Distributor Assembly” the yellow to one of the yellow/blacks at the PGM-FI Main Relay and the pink to the other yellow/black at the PGM-F Main Relay and finally the black lead to the black at the PGM-FI Main Relay,
When ign. is turned on, [car running] all the lights would be on, take it for a spin down a hill and when the car stalls, if one of the lights goes out, the problem is where that light was connected.

You can do the same thing with a simple 12V test light, you will just have to do it one at a time.

The PGM-FI Main Relay, [fuel pump relay] is a common intermittent problem on older Honda/Acuras, I would start there, one of the yellow/blacks is from the injector relay, [power for injectors] the other is from the fuel pump relay, [power for the fuel pump].

You can also try the “tap test”, remove the lower dash trim from drivers side so you can access the PGM-FI Main Relay, undo it so it hangs down, so you can reach it from the driving position, find a hill get the car to stall, then tap the case of the PGM-FI Main Relay up against something will the car start right away again, if so the problem is the PGM-FI Main Relay.

Or you can just remove the relay, take the case off and re-solder all the connections on the circuit board reinstall it and see if the problem is gone.

This will help… http://www.tegger.com/hondafaq/mainrelay.html :whisper:94