Chevrolet - S-10 :: Backfire And Hesitate When Traveling Uphill
Oct 31, 2011
My brother and I both drive Chevy S10 ZR2s, 2001 and 1998 respectively, and they both have the same problem(s). Initially, the first minute after starting, the trucks will backfire and hesitate, which is most apparent when traveling up hill because if the engine hesitates when traveling up hill, we don't go anywhere. However, after this initial minute, the truck perform just fine, mostly.
The only time that they will not perform well after this initial minute is if we go to pass someone on the highway and need to accelerate harder to do so. If we do this, the same symptoms described earlier return, but they will not go away unless the trucks are shut off and allowed to "rest" for a few minutes. A similar problem was described in last week's show, but that was for a carbureted S10 and I'm pretty sure that ours are EFI.
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The 2002 Nissan Xterra (4WD), automatic transmission, I drive for work is starting to have trouble traveling up hills. Just the other day I was traveling on a freeway up a fairly steep grade for ~6 miles. It wouldn't down shift and the pedal was to the floor while I watched the speed slowly drop. I started noticing earlier this year that it will disengage the cruise control on this same steep grade, though not every time. This used to be my personal vehicle and I have been driving it since 2002, so I know how it drives. A mechanic test drove it today and chalked it up to age (our admin assistant took it to the mechanic, so I didn't get to talk to him). Its got something like 170k miles. That is a lot of miles and it is 10 years old, but I am really wary of any diagnosis based solely on age.
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Having issue with ac system cycling on and off while traveling up hill, slopes, etc?? Have a 98 f150 with 4.6 auto and past several months ac acting weird. Its been really hot, ac still is cold but not sure why cycles on and off? Just goes off for several seconds then back on, does not shut off altogether just seems like compressor shuts off intermittently.
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I have a 2000 7.3 and I have a hypertech Max Energy Programmer set to stage 3 in my truck right now (100 HP). I noticed last night when I was going up hill and had my foot to the floor the truck would hesitate for a minute and then lag before it was would catch up to itself. I did it again on some flat ground and noticed when it did do that my boost gauge would get to 20 and then fall to Zero. If I start out and gradually get to the floor without punching it the truck drive fine. How to fix it?
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2000 Silverado 5.3So I recently replaced my head gaskets. And I think I'm finally done working on this truck when I took it for a long drive and it did a little sputter and then backfired. I thought it was nothing since after the backfire it went right back to running perfect. Then again another day it did it again. Sputter. A loss of power and the BANG backfire and it was back to running like new. At first it was very rare. Maybe once every other day. Now its doing it 2-3 times on a normal drive to work. And it will idle rough during one of these spells as well now. When it starts to sputter and lose power I can throw it in neutral and rev it a few times. Once it backfires it's back to running like new. Only codes I'm getting are o2 sensors but I have no cats. Just straight pipes from headers to a turn down exhaust. I was thinking maybe a fuel regulator but I had replaced that just a few months ago. Could it have already gone bad? I changed my fuel filter not long ago and cleaned injectors and rails when replaced head gasket.
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In the morning, when i go to pick up my news paper at local convenience store, the van is running rough and hesitate when accelerating.When i take the van 1 hous later, it will run smoothly and there will be no hesitation and i will be good for the rest of the day.
If i skip the trip to convenience store and the first thing in the morning i do a long trip, let's say 2 hours trip, the van will run rough all the way during those 2 hours.
When the van is running rough it will stay in this state until it's turned off, wait and restarted again.
When the van is running smoothly, it will stay in this state until next morning.
While driving, it never happened that the smooth running engine became running rough and the opposite is also true. It never hapenned while driving that the rough running engine became smooth.
I suspect that at engine start up, a parameter is stored and kept in memory until the car is turned off, wait and restarted again.
DTC code P0336 and P1174
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Girl next door has a 2010 Chevy Impala w/31k mi. Has a buzzing noise from LF while traveling. This is not a clunking CV joint, so don't tell me that. Not a wheel bearing, okay.
This occurs while traveling straight at 20 and up. I jacked LF up. Noise very noticeable on left while in forward gear, but not reverse. Noise more audible in cabin than outside. In neutral, spun wheel by hand, no noise. Compared right side, same tests, no noise.
New brakes last year. Brakes look real good as do rotors. Consulted three mechanics, none have ever heard of this before.
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I own a 1988 Camaro Iroc-Z with a 5.7 350 TPI motor. I was driving the car onto I-95 at a speed of 65 when I heard a loud boom under my car, and pulled over to see what had happened. I couldn't see what happened, so I drove the car slowly to a friends garage to find the exhaust pipe from the converter back to the muffler had split and blew apart. I took my car to another shop to repair the pipe, but when I left the shop after the repair, I accellerated to about 40 mile per hour, I get another loud backfire and loss of power. The pipe is still intact, but I cannot figure out what is causing the backfire. My friend from the first garage says it is a failing fuel pump. I never heard of such a thing to be honest.I am at a loss and I have to correct the issue soon, as this is my only car to drive.
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Once hitting gas pedal, it hesitates to accelerate correctly. Also having difficulty turning over after putting key into ignition. RPM gauge will rev up when it shouldn't gas gauge unreliable. Transmission was just rebuilt but didn't fix the hesitation problem.
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Chevy 1999 tahoe 5.7 vortec ... Car hesitates engine light reads random misfire at auto zone. Took to dealer said 10 degrees out of time on his diagnostic machine. Replaced just about every thing on engine dealer said he couldn't fix because he couldn't adjust distributor, I told him on my car that you couldn't adjust timing from distributor, who is right?
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5.7 vortec has like a dead spot in gas pedal. No power really bad going up hill. New gas pump, tps....
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My pickup always bogs down going up a grade, seems like its flooding out and it starts running real rough and vibrating bad, I have to let off gas and pull over .
Been to shop several times, no one seems to know what's causing it.
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I have a 1975 Chevy Caprice Convertible with a 454 cubic inch "big block" engine with a 4 barrel carb. The car is in mint, original condition with 24,000 miles. Usually the car runs flawlessly, however, lately I have noticed that the car doesn't like going uphill. On level ground and downhill, everything is fine. However, when the engine and car are hot, and I come upon a hill, the car will start to buck and sputter as if the gas is being chocked off. A few extreme times, the car has stalled out completely. Once I role back down the hill onto level ground, the car starts up and everything is back to normal. The problem is not noticeable when the car is cold.
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I have a 2004 Chev Cavalier with a 2.2. Ecotec OHC. Lately the car has started to stagger on acceleration. Particularly when going up hill. The weird thing is, it only does it after it's been running for 10 or 15 minutes. Up until that time it runs smoothly. But when it happens it feels like the engine bucks. Or hiccups. If I stomp on the gas the car will either stall or kick in and overcome this. When I'm driving down the road at a steady speed, or when I'm sitting still the engine will buck in the same fashion. Not steadily--intermittently. Once or twice every fifteen seconds. But it's getting progressively worse.
Now if I launch out of an intersection the car might even stall. When this happens I just turn the key and she fires right up again as if nothing happened. No "Check Engine Light" or trouble codes showing up in my Scangauge. I replaced the fuel filter just as a preliminary measure but that didn't solve the problem. I had the fuel pump replaced a few months ago as well but that ws before this problem occurred. No other parts or pieces replaced. Fuel pressure regulator? Spark plugs? Injectors?
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I've taken my Traverse in to the shop twice now and they can't seem to find the problem - it misses going up gentle grades, especially when on cruise control and higher speeds. First they said timing belt, then spark plug wire, but it's happening again and I'm about to take it back in. The last time they test drove it and they said they couldn't duplicate the symptoms but I think they didn't take it out for long enough of a test.
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This has happened five times within the past couple of months. I have a 2004 Chevy Malibu Maxx LT. In all cases, I was accelerating while going uphill. I am in Chicago so by uphill, think expressway ramp. The Charging System Light and warning bell come on for about a second and then shuts off. When I get home, I check the battery. In all cases, it is fully charged. The battery is six months old. What could be causing this?
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I just replace the engine in my car and I had new plugs and wires put in as well. Ever since the new engine, the car doesn't go up hills well and it is very sluggish from a stand still position. As long as I am driving on a flat surface I am good once I get up speed. I went to autozone and I got a P0300 code. Is this a bad ignition coil or maybe a clogged catalytic converter?
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I'm driving my mom's 1987 Chevy Spectrum, which has about 190,000 miles on it. The Check Engine light comes on daily, but only when I'm driving uphill. The Chevy dealer says because the car is so old, it will take several hundred MORE bucks to find out what the codes mean. Doesn't seem to matter how full the gas tank is, or how steep the hill is. Other than this light, she just keeps going and going. Do I need to track down the cause? Might there be other symptoms that would diagnose it that I'm unaware of?
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When I'm sitting still in traffic or going up a hill the temp gauge will go up. But it goes up real slow. You can set and watch temp gauge and it will just jump up every minute or so. And it has 2 fans on it but they won't kick on till temp gauge gets up over the half way mark. But when temp goes up i can raise the hood and the motor does not feel hot at all. What could cause this?
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Getting slight vibration when traveling at about 60 to 65 mph. Tires are almost new and had them rebalanced about 2000 miles ago. Shocks are less than a year old. Wondering if it is a wheel balance problem or possibly an alignment problem.
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I bought my 2001 Prius used about a year and a half ago and had no problems until the past couple of months. On three occasions now, the triangle warning light has come up on the screen while I was driving and the car wouldn't accelerate when I pushed the gas pedal.
Fortunately, the I was able to coast to the side of the road on each occasion, and when I turned the car off and restarted it, it worked fine. The first two times, it happened on the freeway after a lengthy drive and while traveling at about 70 mph. Today it happened on a surface street, but after I had been on the freeway (in gridlock) for nearly an hour.
I should have dealt with this sooner, but somehow every time it has happened, it was on the weekend and/or when I was out of town, so I couldn't immediately take it to a shop, and since the car started back up immediately and ran fine after each occurrence, it didn't seem urgent.
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