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2000 Passport - Won't turn over, fuel pump relay buzzing/clicking

7 messages,  Last post on Aug 01, 2009 at 9:30 AM

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#1 of 7 2000 Passport - Won't turn over, fuel pump relay buzzing/clicking by jmoyles2 Jun 20, 2007 (12:49 am)
Having a wierd problem with 2000 passport. When I turn the key to start, the following happens:   [A] the fuel pump relay "buzzes" for about a second   [B] about a second after that, a device on the fuel rail starts making a rapid clicking sound that goes on for about 2 seconds. While this is happening, the internal check engine light seems to be flickering rapidly on/off in sync with the clicking. If you are standing in front of the truck, facing the radiator, the clicking is coming from some sort of sensor or device that is at the back right corner of the fuel rail (close to the firewall). It is some sort of cyclinder that has a wiring block with 2 wires on one side, and what appears to be fuel in/outs on the other.   [C] During this whole process, the fuel pump sounds very sick. It's running, but it sounds like crap.   [D] after the above, the engire doesn't turn over. It doesn't do anything. If I restart the engine start sequence, the same behavior happens.   Some things I've tried that didn't change the behavior: I've tried moving another relay of the same model into the fuel relay position I've cleaned the posts of that relay (and all the others) I've left the vehicle without any power (unplugged the battery) for hours Cursing. Lots of cursing.   Now at this point, it sounds like a bad fuel pump, but these 2000 Passports have tricked me in the past. Has anyone else had experience with this, and if so - is this a fuel pump issue, or is their an uphill electric/sensor issue here (like whatever is making that clicking noise (see [b], or some sort of fuel cutoff switch gone bad)?   If it is a fuel pump issue - how hard is it to change to the fuel pumps for this model vehicle? Replies to this message: shadetree56 (Jul 22, 2007 12:13 am) shadetree56 (Sep 02, 2007 6:51 pm) cwilkins (Sep 26, 2007 4:55 pm)
#2 of 7 Re: 2000 Passport - Won't turn over, fuel pump relay buzzing/clicking [jmoyles2] by shadetree56 Jul 22, 2007 (12:13 am)
Replying to: jmoyles2 (Jun 20, 2007 12:49 am) Hello, I have an Isuzu Rodeo, 2001, having the same symptoms as yours with same frustrations. Did you resolve?   I after various diagnostics concluded it was the Fuel pump, ordered one prepared to install and found no voltage to the pump. Went to the fuse relay box and found the relay was not engaging. Traced the control wire for the relay back the ECM. Only 6 volts coming from ECM, should be 12.   Trying to be innovative I bypassed the control wire from the ECM by hooking up the Fuel Pump to another circuit hoping it was the only circuit affected. I got the fuel pump working, but still wouldn't start. I have not checked to see if the spark plugs are doing anything but I suspect they are not. I am researching but my theory at this point is some shut down circuit has disabled the ECM or the ECM is bad. Please advise me of your fix if you have discovered one. Replies to this message: shadetree56 (Sep 02, 2007 6:51 pm) cwilkins (Sep 26, 2007 4:55 pm)
#3 of 7 Re: 2000 Passport - Won't turn over, fuel pump relay buzzing/clicking [shadetree56] by shadetree56 Sep 02, 2007 (6:51 pm)
Replying to: shadetree56 (Jul 22, 2007 12:13 am) Problem Solved. If Isuzu had fixed it they would have replaced the wiring harness and charged a fortune. Theres no telling how many wiring harnesses have been replaced to fix this problem. After testing almost every circuit with a repair manuel to no avail, I was working with a technician friend who undone the computer from its cradle and moved it up and toward the front of the engine. A squeel started and low and behold it started. Trying to get the problem to repeat itself, their are 4 multi pin connectors on the left front fender (drivers side). Two of these connectors can shut the engine down. Unplug each connector and reconnect one at a time. Try to start. This fixed my problem. Replies to this message: cwilkins (Sep 26, 2007 4:55 pm)
#4 of 7 Re: 2000 Passport - Won't turn over, fuel pump relay buzzing/clicking [shadetree56] by cwilkins Sep 26, 2007 (4:55 pm)
Replying to: shadetree56 (Sep 02, 2007 6:51 pm) I have a87 ford ranger 2.9 engine with 5 speed. After fuel relay clicks on it will not click off. Fuel pump runs all the time. Engine won't start..if starts it floods out. I've changed relays, cleaned and exchanged battery cables. It gets plenty of fuel, fuel pressure 40 lbs and hold, when relay switch by passed. 9 round wire on relay won't click off after 5 seconds fuel pump keeps running. changed relay twice. HELP
#5 of 7 2000 Honda Passport needs help by psyphr Jul 14, 2009 (8:07 pm)
I recently bought a 2000 Honda passport with about 113,000 miles on it. the problem is when I start it up it idles at about 1200 rpm. If i let it sit for 5-10 min. it will eventually go down. I dont want to do this every time I start the car. any ideas?    Also, sometimes when I`m out driving the car will stall when Im idling. It has even stalled when I was just coastng down a hill. But it starts right back up with no problem. That was kind of scary because the power steering went out. It feels like the engine is not getting enough fuel sometimes.    Plus, its getting really bad gas mileage. about 12-13 miles/gal. I can visually watch the gauge dropping while I am driving. There might be something wrong with the gas gauge. It only takes 12 gallons to fill it up and its a 21 gal. tank if Im not mistaken. Please help. Replies to this message: dontkean (Aug 01, 2009 9:30 am)
#7 of 7 Re: 2000 Honda Passport needs help [psyphr] by dontkean Aug 01, 2009 (9:30 am)
Replying to: psyphr (Jul 14, 2009 8:07 pm) Hi, I had a 2001 Jetta that had similar problems. It was a fuel mix sensor that was bad, making the fuel too rich and stalling the car when we slowed down or stopped at a light. You might look into that.

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