Chevrolet - Express3500 :: 2000 - No Fuel Pressure After Engine Fire Up?
Dec 30, 2012
Vehicle: 2000 Chevy Express 3500 passenger van 5.7L
History: Low fuel pressure when starting. If the van sat longer than 24 hours it wouldn't start without a squirt of starting fluid. I suspected it was the fuel pump but didn't get around to changing it. My wife put in "extra" starting fluid one afternoon and tried to start the van - there was a small explosion which blew up the air cleaner housing and started a fire. She put the fire out with an extinguisher. The fire was restricted to the air cleaner media and housing and burned for about 45 seconds.
Repairs: I cleaned up the extinguisher material and replaced filter housing and media. I checked the fuel pressure at the fuel rail - pressure gauge read zero. I checked the relay and all of the fuses - everything was in good shape. I looked for a fuel cutoff switch but the Chevy tech I talked to said there isn't one on that year of van - he recommended that I disconnect the battery for 5 minutes to reset the system. I did that too. Still no fuel pressure. Replaced the fuel pump and fuel filter. Still no fuel pressure.
Current Status: The engine will crank and if I put starting fluid in the van will turn over and run as long as there is starting fluid. When the accelerant is gone the engine stops running. Again, it will crank but there is no fuel pressure at the rail. The manual says the pressure should be 85 lbs with the key on and engine off and then 45 - 55 lbs running.
View 14 Replies
Advertisement
Actually above + an interesting mystery.. Late last spring I began hearing a noise of constant pitch (sounding like someone sanding wood) when the engine was cold---Louder when it was colder/cooler. As the engine warmed up the noise went away. Throughout the summer,No Noise. n. Late summer broken water pump replaced along with hoses/belts. No noise until, temps in AM in the 40's.
Now that same damn noise is back.Only LOUDER! Same pattern>>as engine warms noise softens and goes away. My ear suggests noise is coming from the tensioner pulley (But, I've been fooled before)As to the question above, Do I tighten the belt on 'This vehicle' using the tensioner pulley or do I have to use the "Pry the Alternator forward" method.? One last thing, while the noise is occurring it does get louder with acceleration but is soon blocked out by normal engine noise.
View 5 Replies
Recently my '92 Chevy Lumina (115,600 miles) has taken to not "firing" after I turn it on. It has a brand-new battery and altenator so there's plenty of current. I usually try to get it running 3 or 4 times and if it won't go, I leave it so as to not wear down the battery. It's as if it's not getting any fuel and yes, I do have gas in the tank. I've had the pressure in the fuel pump checked and it was within normal range although on the low end. I can wait 30 seconds or 6 hours and eventually it will "fire" and run.
View 8 Replies
My mechanic told me that the fuel pressure is about 5psi low. Could this cause jerking/bucking during acceleration?100,000mi SS
View 7 Replies
My hyundai accent 2004 standard doesn't start. The engine crank, but there's no fire. I change the camshaft and crankshaft sensor. Also change my timing belt, my alternator, my starter, my control box and my computer. But if I pull the car with my pickup, it runs. While the engine is running, the computer doesn't give me any diagnostic code. I also check my fuse, relay,... Even jump start the starter to check if it was the switch.
View 4 Replies
Well zipping along the highway tonight, sitting on 100KM/h, and all of a sudden the engine loses all power. As luck would have it a fuel station was just closing (the only one for half an hour either side) and kept the lights on so I could have a look. The starter is nice and lively, and the engine is trying to fire, but just wouldn't. I asked a mate of mine in town to come out and give me a hand troubleshooting.
As it turns out, when the ignition switch is set to the "ON" position, normally the fuel pump primes the lines. It's only doing it intermittently for some strange reason, and not making it past the fuel filter (despite the filter being new). The temporary buzzing in the engine bay when the car is switched off is gone now too.
Now my question is - does this sound like fuel pump? I'm only used to the older fuel pumps in carburetor vehicles, not these fingle fangle electric things!
View 4 Replies
My problem is with a 2000 Mountaineer V8. Once a year I have to replace the battery after the first cold snap due to low cranking amps. I can simply hook up a battery charger and it will crank and fire. My second problem is most likely related. When I replace the battery it will kick off like a brand new car with no hesitation. After a few starts it takes 5-15 seconds for the engine to fire while the engine cranks normally, and that's how it operates all year. After having this problem again this year (I've owned it 4 years) I've realized the underlying problem is not the battery. All the connections are good, and it has a good ground. No lights or warnings, and when tested with a handheld scanner there are no error codes.
View 11 Replies
My 2001 Accent GS (1.6L DOHC) wouldn't restart after a short 2 mile trip to a local store. The engine cranks fine but doesn't fire.
It has had a CEL issue for awhile and after it wouldn't start I checked the codes and got:
303
335
722
I replaced the Crank Position Sensor and Fuel Filter but it still just turns over.
I hear the fuel pump run when I turn the key on and I broke the fuel line and it is Pressurized, so I doubt it is a fuel issue.
The 722 code indicates the output speed sensor has an issue. Need to know definitively if that sensor is completely shot could this prevent the ECU from firing the engine?
I have had this car since it was brand new and I'd like to keep it going a little longer.
View 5 Replies
I had my fuel filters changed at the dealership today on my '15, and then I bought fuel and headed home (70 miles). About half way home I got a "Low Fuel Pressure" message and a little while after that "Reduced Engine Power" along with the check engine light.
I pulled over to see if they did something like leave the drain open, thinking it might be sucking air. Of course it was dark and I could not see anything. However I did hear a buzzing sound and could feel a vibration when I touched the fuel line going into the top of engine filter.
While it is possible I got bad fuel, I suspect they did something wrong installing the filters. Even after cycling the fuel pump multiple times they had a hard time getting it started afterwards; I think they finally disconnected the top fuel line to bleed the air out.
I continued home and made it, but not sure what to do now; its 70 miles back to the dealer.
What is the most likely problem? Improper fuel filter installation or bad fuel?
Should I pull the filters in the morning see if there is something obvious like an out-of-place gasket? If so, top or bottom filter?
Is this a tow truck affair or should I drive 70 miles back to the dealer?
What the heck is the buzzing sound?
View 7 Replies
I need to check the fuel pressure to verify if my fuel pump is functioning. What is the procedure and PSI?
Assume that I open the valve on fuel rail with engine off, then connect pressure tester kit, put key in ignition to "on" position, then pump up to specified PSI???
View 3 Replies
2006 Chevy Silverado 2500HD Duramax.
When I park it with the front end elevated even just slightly higher than the rear the fuel system loses pressure and I have to pump it up using the manual pump under the hood. This usually happens after 15 - 20 minutes of park time. When it is parked flat it usually will last hours or more, and if I park it with the rear elevated over the front then it doesn't seem to have a time frame. in other words it does not lose pressure at all.
View 3 Replies
2000 explorer XLT, 4.0L, OHV (VIN "X")---sitting for 15 months, engine turns over but no start unless 10 cc's of gasoline into intake manifold, then runs for 4-5 seconds. Fuel pressure of 5-6 PSI at fuel rail AFTER replaced fuel pump assembly and fuel filter. I can hear fuel pump come on for about a second with key on. Doubel checked fuses and relays for fuel pump and PCM, then again checked that engine would run briefly with gas squirted into intake manifold. Questions:
1) Could fuel lines be clogged after sitting for over a year?
2) Area driver's side next to spare tire, underneath jack storage, where return fuel lines are clustered (nuts are rusted and need to be sawed off)---some type of fuel regulator here? I thought fuel pressure regulator was on fuel pump assembly.
View 11 Replies
2002 E-250 with the 4.6 V-6. Pulled the 30 amp fuse, replaced the fuel filter, replaced the fuse, now the truck wont start. Checked the fuse and the kill switch under the passenger kick cover, all ok. Cranks and cranks but wont fire. No problem prior to changing the filter. Even swithed out the relay with another, no luck.
View 4 Replies
i have done mechanic work most of my life and can't figure out whats happening with this car. it'll idle fine but when u give it fuel it's like it cuts out. have changed fuel pump,timing,and checked most sensors?! 2000 chevy prizm twin cam toyota motor same as corolla.
View 2 Replies
I have a 2000 Ranger with the 3.0. Was wondering where the fuel pressure regulator is located on it. I like pictures.
View 1 Replies
I have a 2000 Ranger with the 3.0 in it. Trying to find where the fuel injection pressure damper is located. I was told it's on the fuel rail. Just making sure I'm looking at the right thing.
View 3 Replies
It is the 2000 GTP 2 door. It is my sons car and is dead in front of my house. Changed the fuel filter as it is cheap to do. At the check valve there is no pressure in the fuel line. I turned it over with the hose off the filter it did not pump any fuel. I do hear a click or clunk in the gas tank when I turn it over suggesting it is getting power into the pump.
I almost went and bought a pump but do not really want to put the $230 + tax down without checking the resistor after reading around the net.
View 7 Replies
The fuel gauge on my 2000 Blazer is flipping from empty to full. (Even as I drive down the road it moves.) And nothing in between. The fuel pump was replaced about a year and a half ago. I've been told the fuel pump controls the fuel gauge. So I'm wondering if there could be a loose contection or if this is a sign the pump will go bad again.
View 6 Replies
I have an 88 Chevy C1500. It started showing low oil pressure about a year ago and I went with a heavier oil and oil pressure go a bit better.
Just changed the oil and now, when I start the engine cold, I show normal oil pressure. As the engine temp increases, the oil pressure goes down. When engine is fully warm, oil pressure shows 0 and "check gauges" light comes on.
Decided to put even heavier oil in but guy at parts house said it was probably the sending unit, not a worn out engine. I tend to agree because I drove it more and never hear any ticking or valve noise. Too cheap to replace the sending unit.
From the symptoms above, does thus sound right? Could the sensor somehow fail as engine temperature increases? Everything I read says oil pump failure is very rare.
View 11 Replies
2000 f250 V10 ...
Problem: More often than not when the key is turned to run (?), prior to engaging the starter, the fuel pump does not turn on for its 5 seconds. I have installed a fuel pressure tester gauge to watch the fuel line pressure. It was a little shaky to diagnose because if the line had pressure/fuel from the previous run it will start and run a short time and then die from lack of fuel. Unless the fuel pump activates when the key is turned to run, prior to full start, then there will be no fuel coming from the pump. No start. If you work the key to run a few times until the pump engages its good to go. The truck has never died while driving, once it gets that initial pump activation it runs good until the next start up cycle. When the pump does work it builds up to good "book" pressure and holds it at 39 when the engine is shut off.
We have put off changing the fuel pump for obvious reasons but can not see how it could be the problem since it has never quit once after we get it started. Are we wrong? We know the fuel shut off is on as it will run. We have changed the key lock tumblers, the ignition switch and the fuel pump relay. (behind the radio). Next up is to re-seat all the fuses and relays in the main fuse panel box under the hood. I just read that today on FTE. Is there a test we can do or some engine codes we need to look for? This problem is getting old fast.
View 7 Replies
I have a 2000 echo that recently will not allow me to fill the gas tank unless I do it very slowly. Otherwise it continually trips the pump nozzle.
View 1 Replies
