Chevrolet - Blazer :: 2002 - Intermittent Fuel Pump / Not Work Only When Tank Is Full
Nov 6, 2014
I have an 02' Blazer 2Door 2WD 4.3L vortec. Great truck - very low miles. About a month ago the fuel pump went out. She was showing signs / not starting on the 1st/2nd try and finally wouldn't start. It's a 12 year old pump and I was also that guy trying to make til Friday on a quarter tank - so no complaints so far. I checked the relay and fuse, all good there - so I bought a new AC Delco and fuel filter. Drained and dropped the tank, cleaned and dried the tank and installed the new fuel filter. The pump came with a new pigtail - so I wired in the new pigtail, attached the hoses and re-attached the tank. Not bad for 6 hours of work ( first time - don't judge ). She fired right up and ran like a champ / about a week later I stopped and filled up the gas tank. Next day - no start / no whine from pump / 0 psi at the schrader valve.
Assuming it must be an electrical issue - I dropped the tank and tested the gray power wire / 12 volts. But to be thorough / in case I made a mistake / I stripped and re crimped all the connections, heat-sealed the sleeves and wrapped in all in electric tape. Tested the pump - she hummed like a kitty. Re-installed the tank and she fired up like a champ. Drove around a couple of days - stopped and filled the tank with gas. Same thing - wouldn't start right there at the pump. i poured fuel in the intake - she would start and run until the fuel burned up.
No hum from the pump. had it towed home ... again ... began to siphon my now full tank of fuel to drop it yet again. At about 1/2 way , I tried her and the pump primed and she started right away. For the past two weeks I have been unable to make it NOT WORK - but i am worried to go very far , less i be stranded again. on the gauge I get 60 with the key on and 56 running. With the engine off the pressure holds for quite a long time - well over an hour+. So what would cause a brand new AC Delco pump to not work only when the tank is full - then start working when some of the fuel is removed?
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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.
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This has happened to me 4 times now in the 7 years I've owned my car. It happened so infrequently I thought the problem was the pump's sensor was not working properly. However now it's happened twice the last two times I've tried to fill up. On Friday my son was supposed to fill the car and could only get 1 gallon in and the fuel pump kept clicking off as if the car is full of gas. The bars never moved and I thought the problem was the pump. Then today, Sunday 2 days later, I decided to go ahead and fill it up. I have 250 miles to drive and want a full tank of gas. The tank shows 3 bars. I started fueling and it clicked off at 1 gallon. So I pulled the pump trigger again and tried to force more fuel in and it stopped and wouldn't add anymore than 1.7 gallons.
So now I have a long drive tomorrow and I can't figure out why the pump is clicking off as if the tank is full yet it can't be because I drove 250 miles since my son tried to put gas in and it's showing I have 3 bars.
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I replaced the fuel pump in my 2001 chevy blazer last year and it just quit again two days ago. Internet research leads me to believe it is a common problem in chevy turcks. Blazer stops running, sits for a few hours to a day and then starts up again. Is it going to happen again and is it really the fuel pump.
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I have a 2001 Chevy Silverado with the 4.8L V-8 engine. It acts like it is running out of gas ( the gas tank is over half full). The truck has sat for about 6 months in this condition without being started here in Sacramento, CA. I then replaced the fuel filter and for a few minutes it started and the engine ran fine (without actually driving it). A few days later I started it again and it now again acts like it has fuel starvation, it will rev up briefly then act like it is running out of fuel. I know the fuel pumps are the Achilles Heel of these trucks, but before I try changing it I was wondering if there might perhaps be another problem such as the new fuel filter plugging up quickly or possibly an electrical problem. I've always heard these fuel pumps either work or they don't work, nothing in between. This problem is intermittent but big enough the truck is not driveable. Is there any way to get a good take on the problem before diving into the fuel pump replacement and hoping that solves the problem ?
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I put a new battery and the fuel tank is full but the car always has trouble starting. the other day i sat trying to start it, pumping the gas for 10 minutes or so. Nothing. I noticed some dripping under the car but it looked like coolant. Could this be something bigger? I have a new battery in. Do I have to go and start it every week and let it run for a few minutes? Any portable car jump start?
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I was filling up the Phaeton tonight when the gas pump malfunctioned. Instead of shutting off when the tank was full, it just kept on pumping until gas came spewing out of the tank. The side of the car (and my best pair of pants) got drenched in gasoline. I immediately went home, threw my clothes in the laundry, took a long shower, washed and waxed the car, and cleaned the seats with leather conditioner for good measure. The car still smells of gasoline, but not so badly now.
My question is this: Is there harm in filling the tank completely to the brim? Because my tank is now as full as it possibly can be. Is there anything I should do before I drive it again?
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My car is a 2003 Hyundai accent . When getting gas, the gas pump often shuts off several times( almost every $0.50 of gas) well before my gas tank is full. Also, I have to fill the tank VERY SLOWLY to prevent spills and it takes a long time to fill up the tank. After Im done the car takes gives a bit of problem to start. Could it be the fuel filter?
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My gas gauge is intermittent. most of the time it reads right, but like 30% of the time it shows empty regardless of how full the tank is. What would cause this?
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When I fill up gas at the pump, the pump continually cuts off as if the tank is full. I spend about 10 minutes at the gas station filling up the tank, and I can never tell if the tank is full or if the hose is just cutting off. The car mechanic told me the replacement vent line cost $200 to $300 to replace (with labor). Is there any cheaper solution?
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I had less than half a tank and went to fill up before a long drive. At the gas station, the pump wouldn't let me put any gas in the tank , it kept clicking stop. I gave up and was going to try again later, however when I turned my car back on, it said I had a full tank all of a sudden.
The gauge on my dashboard isn't going down at the right speed either.
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The starter engages but it seems I have no power to the instrument cluster or the fuel pump.
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Trailblazer 2008. This has happened 6 or 8 times. When fuel tank is 1/4 full or less, decelerating downhill from 50 mph to make a right-hand turn, the engine stalls as I reach the turn. Of course I lose power steering and brakes.
If I stop in that downhill position, the fuel gauge reads ZERO but the Low Fuel light is not showing. Turning the key to restart does not restart the engine but if I roll to a flat piece of road or to an uphill position, the engine starts immediately on turning the key. The fuel gauge continues to show ZERO until I turn off the ignition completely and restart. Then the fuel gauge immediately returns to indicate 1/4 full.
No warning lights of any kind show on the dash. There is no question of the gauge showing a false 1/4 indication when the tank is actually empty, since I can drive for 30 miles after the incident while the gauge slowly drops lower until I fill up again with gas.
SOMETHING tells the engine it has no gas so it stops. No stutter or indication of fuel starvation. Simply an engine shut-off.
I tried to reproduce the effect immediately after it had happened by turning the car round and retracing the route, but it did not happen a second time at that location, but it did repeat a few hours later at another intersection.
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I generally average north of 50mpg on a regular basis. Yet, my cruising range is always somewhere around 300~ miles for a full tank.
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I am the original owner of a 337 with 292,800 miles, that's correct. I recently have had a fuel cutoff problem when the fuel tank gets less than 1/3 full. So I replaced the fuel pump and fuel filter thinking that would solve the problem. It still stalls with a low fuel tank. It runs fine with more than a 1/2 tank. I have a Vagcom and no issues there.
Mystified at what could be the cause. Possibly fuel pressure regulator or vacuum line, is there a check valve somewhere in the fuel system that could be sticking, or what about an issue with the EVAP system? By the way this car still looks great, has been to the track many times as well as autocrossed, and still has the original clutch. Way to go VW. My race car is a spec miata.
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2000 Blazer LS 4X4. 186k miles. It would seem that my heater control will only work for defrost and face-vent operation. (Just happened yesterday) When I move the controller from the off position to defrost, I can hear the system moving the flaps into position. But it no longer moves for defrost/floor or just floor control. Would changing the heater control solve this problem, or could it be a bad vacuum line?
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This van has had a couple of fuel pumps, no surprise there, and i need to look through my paperwork and find out how many miles the current one has on it, but it has the STRANGEST habit I've ever had on any vehicle. Starts fine, runs fine, no fuel pump noise when van is running, and when you turn it off, the fuel pump creeks on and off for several minutes.
I mean a strange creaking noise almost like a shorted electrical device or a vehicle's brakes when you park it on a hill and the breaks creak as it settles into place. I'm probably doing a lousy job of describing this but i don't know how else to describe it!
ALSO, if you lay under the van and wait til it stops creaking, you can tap the bottom of the tank and it will creak for a few more seconds. You can tap repeatedly and make it creak more. Is it about to explode? Can i trust it on a road trip?
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So I'm now on my second week with this 2012 Prius and still trying to learn how to roll in it.
I filled up my very first tank yesterday (dealer gave me a full tank when I bought it) and the miles remaining display said 424 miles after I filled up. Does it display 424 on all Priuses by default?
The first tank gave me right around that many miles before I filled up - the miles remaining display said I had 9 miles left so I got too scared to see if I could go farther. But when I filled it, I only filled just under 10 gallons - does that mean there's more miles for me to drive, despite that remaining miles meter?
And...am I getting pretty bad fuel economy?
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Full tank and the gauge reads empty. Has happened to me a few times. Occurs after a fillup and disappears after the car is left to sit for a while off. I would hate for this to happen on a long drive. Dealer hasn't been able to duplicate the issue. Am wondering if this might be related to the hiccup in some way. Also, am wondering if this is a fuse issue.
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The computer apparently calculates the fuel economy per trip (or a series of trips if the car is stopped less than 2 hours) but I don't know how to get it to display the fuel economy for the tank full. Normally I'd reset the computer upon refilling but since it calculates per trip it doesn't calculate per tank. Fortunately the fuel gauge seems to be pretty accurate and each mark is approx 1 gal so I can do a quick approximation but I'm used to having the car do the tankful calculation. BTW, I reset on MFA 1, I've never reset on MFA 2 and that doesn't show tankful economy either.
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2002 Chev trailblazer, I have had the throttle body cleaned.... Sometimes after short stops, my vehicle will not crank, some times I have to step on the gas several times and it will finally crank, it sets no codes, no check engine lights come on. If it sits overnight, or for more than 20 minutes it cranks right up.
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