Gotta make BHF next weekend, Van is dead...HELP! - Chicagoland Sportbikes
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post #1 of 14 (permalink) Old 04-09-2005, 08:24 AM Thread Starter
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Gotta make BHF next weekend, Van is dead...HELP!

Hey Guys,


I have to have this van operational by next Friday, April 15 or I miss my first track day!


I gotta '91 Ford E250 Van that is causing me some ulcers. I use it to transport my track bike and BHF is next weekend, ARRGGHH. Part of the problem is that I am NOT a mechanic at all. The engine is a 4.9L inline 6 (300c.i.) with EFI.

Here's the deal: It will crank right up and run about 1 - 2 seconds and die. If I get really aggressive with the gas pedal (pumping it up and down real fast) I can almost keeping it running, but it still dies.

Here's what I have done so far:
1. I have replaced the fuel filter
2. I disconnected the fuel line and made sure that the fuel pump is pumping gas. It shoots gas out of the fuel line pretty good, I think it is OK...but I'm not sure.
3. When I released the pressure on the fuel line I noticed it seemed like there wasn't much pressure so I replaced the fuel pressure regulator.
4. I thought I might have some bad gas, so I treated it with some Octane boost and stabil to deal with any water, etc. that might be in the gas. The tank is almost full of gas.
5. I removed and cleaned the EGR valve.
6. I checked all the vacuum lines I could fine and they all looked to be in good shape.
7. I replaced the PCV valve.

In addtition to all of the above, I recently did a full blown tune up and had the van running great. Then all of a sudden, this issue pops up.

Help! I am past my abilities, can someone rescue me?

I am thinking my best bet is to get a real mechanic to make a house call (I live in Aurora)...or to somehow get this van to a nearby mechanic shop.

Thanks!

Ron Hix
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post #2 of 14 (permalink) Old 04-09-2005, 09:06 AM
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Not sure if Ford still uses this in 91, but did you check the TIF module?

Hows tha catylitic converter? If thats plugged the motor cant breathe.
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post #3 of 14 (permalink) Old 04-09-2005, 09:21 AM
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sounds dumb i know but on one of my vans it almost acted like that, the issue was a battery that was so low it could start the van but it couldnt keep it running, replaced the batter, later to find out the alternator didnt put out enough power to run the van but yet drain that new batter down.

maybe its one of those?



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post #4 of 14 (permalink) Old 04-09-2005, 11:22 AM
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You said when you releived the pressure from the fuel line it didn't seem like there was much pressure. It probably needs a fuel pump but at this point anything is just a guess as it's sort of hard to diagnose a car over the internet. Get it towed to a mechanic before you waste any more money throwing parts at it.

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post #5 of 14 (permalink) Old 04-09-2005, 11:59 AM
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Sounds like the Fuel pump..Is there a way you can get a hold of a pressure gauge to check what the pressure is from the fuel pump?

If it runs when you keep pumping the shit out of the pedal then it sounds like the pump. My ex's Blazer did that.

Chances are the fuel pump will be inside the tank


I'm sick of following my dreams. I'm just going to ask them where they're goin', and hook up with them later!!
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post #6 of 14 (permalink) Old 04-09-2005, 01:21 PM
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Chey beat me to it!

Sort of had the same issue with my truck and the fuel pump was the culprit.
Could be the same for you.........Get a pressure gauge and throw it inline. You will know right away.

Btw.....I would NEVER add stabil to your gas unless you are storing it. Octane boost is fine but and Fuel cleaner is fine but i would not mix any 2 treatments in the same tank. Could cause "HOT" combustion......

Just my .02

<--Kelly

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post #7 of 14 (permalink) Old 04-09-2005, 04:13 PM
 
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If the van fails, see if you can get a ride with someone else. It would make sense to carpool it anyway.
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post #8 of 14 (permalink) Old 04-09-2005, 06:51 PM
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I had the same problem with a 94 ford econline and it was the fuel pump.

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post #9 of 14 (permalink) Old 04-09-2005, 09:20 PM
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I had the same symptons and it was the fuel pump. Downside is there MAY be more to it than that. Make sure the voltage to the pump is to spec. I had my fuel pump go out, towed it in, got it fixed. It crapped out two months later with a dealer part. Shop started snooping around further and found a bad ECU and bad fuel pump resisitor. Took four days but seems to be going good so far (that was about a month ago). And Chey's right, the pump is probably in the tank. I suggest taking it to a decent shop and make sure they check everything regarding electric stuff out. And make alternate plans to get to the track, it might take more than a couple days.

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post #10 of 14 (permalink) Old 04-11-2005, 01:48 PM Thread Starter
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Thanks guys, sounds like the fuel pump is the consensus!

I got a mechanic coming out tomorrow night with all his gauges so hopefully we can troubleshoot it pretty quickly and get it knocked out.

BTW, this 91 Ford van has 2 fuel pumps. A low pressure fuel pump located inside the gas tank and a high pressure one in line. The inline one is pretty accessible so hopefully that is all it is. I'll post up as soon as I know for sure.

See you guys this weekend at BHF!!! Yea baby!

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post #11 of 14 (permalink) Old 04-14-2005, 11:31 AM Thread Starter
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After trying a couple of things, turns out the problem was the "map sensor". Not 100% sure of how this part works, but I think it measures throttle position somehow and exhaust manifold pressure and then adjusts the fuel supply dynamically based on this information. Basically, this faulty "map sensor" part was shutting off the fuel immediately after the engine started.

Of course, as soon as I got it running the starter solenoid immediately went out! No biggie though, I can crank the van with a big ol' screwdriver until I can get that fixed next week. At least I can get to the track this weekend!

Thanks again guys for the help, I look forward to meeting some of you at the track this weekend!

Ron Hix
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post #12 of 14 (permalink) Old 04-14-2005, 11:37 AM
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WOW gotta love the new cars with all this computer crap, man i miss my 77 camaro



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post #13 of 14 (permalink) Old 04-14-2005, 01:19 PM Thread Starter
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Quote:
Originally Posted by Odysseys
WOW gotta love the new cars with all this computer crap, man i miss my 77 camaro
Yea, exactly! "new car computer crap" indeed and it's a 1991 rusted out beater with almost 200K miles on it...

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post #14 of 14 (permalink) Old 04-14-2005, 01:34 PM
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