Chevrolet - S-10 :: Truck Idles Rough And It Gets Worse When Its Rainy And Damp
Dec 6, 2013
At first I thought it was a vacuum that was causing all of this.I was getting a (small leak) code I replaced the vac tubes and the code still came back. But that is not the main problem.I had two problems at the same time I just didn't know it. A vac leak wold not make it run this bad. I had just recently put in new plugs and found one plug loose. It was easy to take out and didn't need to be broken free. The plug was fouled out bad (black) the other 4 were good. It must have been the loose plug all a long that was giving me problems.
I drove the truck a while before I checked the plugs,I had no clue it was loose. When the plug job was done,it ran well (because engine was warm) the next day with a cold start it ran bad,real rough. I was thinking that the loose fouled plug caused the coil pack to over load and go bad.. Now when the weather is wet it makes it way worse. At least when it is dry I can drive it. Do you think the coil packs could be the problem creating the missing and rough idle??
There is only 70k on the truck I bought it new in 2002....
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I have an 88 chevy K-1500 4x4 5.7L ... My truck lacks serious power, it idles rough, sometimes wont idle at all, sometimes Truck Idles fine. I have adjusted the timing to tdc, and 4 deg. both ways still runs like crap.. Sometimes I can keep it idleing, put it in rev. or drive, and it will die. I have no power and if I put my foot in it too much it will backfire. but will only backfires when in gear and press on the gas to put a load on the motor. I have replaced the: tps, map, egr, pcv, distributor, cap, ignition coil, rotor, plugs, wires, timing chain, both sprockets cam and crank, checked all hoses for leaks, replaced the injectors, the O2 sensor and have changed the intake gaskets. And am still having no luck...... I am bout to just drop an M80 in the gas tank and watch her burn..
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Where to start looking to resolve this code. It is not an intermittent code. It returns after about 3 to 4 key turns. Truck idles a little rough but runs fine. I have looked up the code and causes but wondering how to deal with this directly and fixed it. I'm wanting to sell my truck for something bigger and would like to solve the issue before hand. 2003 Ford Ranger Edge...
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So my "farm truck" is idling very rough, to the point that sometimes that it stalls out. At high idle it runs fine but when its at a idle its very rough. Its been running fine until probably a month ago or so and its just getting worse. What it could be? I am thinking it might be that something is dirty but i just dont know where to start with figuring out what the problem is.
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1989 Chevy Corsica has lower than spec fuel pressure, but exhibits no problems under heavy acceleration at highway speeds (passing), so I'm not sure it's a problem (yet). When cold, seems fine. As warms up, starts to surge somewhat when driving around 30MPH and idles rough and stumbles when starting from a dead stop. No blink codes (except code 12) and no check engine light. I suspect a sensor, but which one(s)? Low fuel pressure or bad sensor?
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I am trying to solve a mystery on my mom's truck. It's an '06 4.2L F-150 STX with about 133k miles. It had a check engine light on until today- I cleaned the TB and changed air filter yesterday, and both were filthy. Code vanished later on while driving.
I want to check the PCV because the truck idles high and rough in any setting from park to OD, stopped or moving. Worse when stopped though. Entire coil pack has already been changed due to previous misfire problems. This feels similar to a misfire but without the acceleration hesitation. It has also had a recent oil change, and fuel/oil filter change as well.
There is only one hose connecting to the intake on this truck, and it appears to be a vapor line of some sort to the valve cover, but isn't a PCV cause it's just a hollow tube. There is nothing else coming out of the TB at all, except for the throttle control cable. I don't even seen any nipples or connections or holes where a PCV hose or valve should go. I thought it was on the passenger side, under the TB... but there is nothing here at all. I'm stumped.
I am beginning to think the truck just does not have one at all, which I know for a fact is impossible. I have traced every line on this motor from top to bottom, and I do not see it. Should have a heater on it I assume? What else can make the truck so rough? I don't buy it that "it's just that way". That is complete, lazy, BS. I have had/driven many trucks; 4x4s, supercrew, diesels, jeeps, dump trucks... I have NEVER had a truck run as badly and roughly as this one does. Heck, a twin-turbo 700HP diesel doesn't run this roughly.
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I have a 2000 Chevy S10 V6 with 176,500 miles that won't start when weather is cold and damp or hot and humid. I've checked distributer cap, spark plug wires, ignition module, and replaced crankshaft position sensor because of a high resistance reading on the sensor (14.17 Megaohms). I've never had any fault codes. What else can I check before I decide to junk the truck.
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I have two issues with my 2000 6.8L gas excursion. Neither seem to be causing any harm...
1st issue - While its raining, or even just really humid, on a cold startup, my truck runs rough. it almost feels like it wants to die, but doesn't. After about a 1000 feet down the road, it runs normal.
2nd issue - I've started noticing that almost always, I here a whirring type of sound coming from the back. It is not from the brakes, as they are new and the sound is best heard at a complete stop. The sound lasts for about 3 seconds and then repeats after a few more seconds. At first I thought it was the coolant circulating through the pipes that run to the rear heater unit, since the sound sounds a lot like fluid flowing through a pipe. However, my coolant level is normal and the system is tight and I have not had to add any since the only major overhaul in January. At idle, the engine sounds like it isn't idling at a constant rpm, but more like a slight up and down in rpm, but the amount is so slight, it doesn't register on the tach. The only other thing that comes to mind is the fuel pump. Is this sound a sound of imminent failure of the fuel pump? Or is it normal? The truck otherwise runs great at any speed and pulls my boat as well as I would expect it to.
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I am a laid off mechanic doing some side work. I friend of mine has a 98 blazer that will not start in damp weather. Here's the kicker, it has spark to the plugs. New cap, rotor, pick up coil, and wires. Fuel pressure is around 60psi. I think it might be in the fuel injection. I drove the SUV into my garage, While the engine was running I watered the distributer down along with the wires. It ran fine. I shut it down and tried to start it a few minutes later with no luck. I took the distributer apart to inspect it for water and found nothing. I reassembled it and still had a no start situation.
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I have a 2005 chevy trailblazer that vibrates. Gets worse when air conditioner is on. I've put new tires, new front end alignment, new spark plugs, changed my harmonic balancer. My motor mounts are fine. My engine light is not on so i cannot figure it out.
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When damp or foggy, my 1990 Buick Century 3.3 will either not start or start and idle rough. Spraying WD-40 on coil packs and wires work. I tried click and clack's method of misting water on the 3 coil packs and wires when idling, and got arching on middle coil, # 2 wire to top of coil pack. Do I need to replace that coil, or just the spark plug wires? The slight mist of water on that middle coil stalled the engine, and it would restart after WD- 40 was sprayed on the coils/ wires.
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My truck runs rough/bad when it rains or is damp out. It stutters and had no acceleration. I just had a new fuel pump put in January. It improves after a while on the road. If it's wet, my travel sucks.
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I have a 2003 Silverado 1500 V6 vin code x with 260000 miles, for about a week now in the morning when its damp out or when it has rained the truck won't start, it cranks fine but will not fire. once it sits for a few hours and everything drys up it fires right up with the first turn of the key.
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I have had my 06 Passat 2.0t into the dealer twice and they have been unable to resolve a rough shift issue between 1st and 2nd. The first time they replaced the camshaft and cam follower (which makes no sense to me), the second time they said they did a software update.
I was under the impression that the software update to fix the rough shift removed the gear indicator in the MFD, but mine is still there. Each time when I get it back the transmission is much smoother for a couple days but progressively gets worse to the point I don't like driving my car (which I loved driving before this issue started).
I have read about a TSB being issued that advised a software update and the replacement of the valve body to resolve this, but I can't find the number for it.
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So my sonata 2.4L has been freaking me out lately. Once it has been driven and warmed up good, it starts to idle rough at rest at lights and in traffic. Now the crazy thing is it idles even more rough if I switch it into neutral during those stops. One more thing is it idles the worst after I fill up with gas and get stopped at lights.
So what I have done:
Cleaned the MAF sensor with MAF spray
Changed spark plugs (I4 so it comes with coils not plugs)
Put Lucas Gas treatment in
So I'm getting no check engine light. So all I can think of is fuel filter. Or some other sensor. I mean I know it could be a coil so that would be the next thing I check. What this could be?
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2002 5.4 super duty. My truck had started to ping, and knock worse over time. I did some research on this site, and I decided to remove my K&N air filter. Replace it with a traditional paper filter. Then I cleaned my mass air flow sensor. The results were great, no more knock and ping.I will check the MPG next to see if I get any improvements.
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302 V8. Autolite 2150 carb. Auto-tranny. My vintage Ford truck which I love has developed a problem where it idles too fast for too long after warm-up. What I mean is that it is normal when it works correctly for it to idle fast for a few minutes until it warms up, at which point the idle speed slows down to normal. The way it works when it is working correctly, after a few minutes to warm up, I step on the gas pedal briefly, and the idle speed to kicks down. That's the way it is supposed to work. It seems actually like there are actually three idle speeds when it is working correctly. Fast, not quite as fast, and normal, all accessed via the kick down operation. Working correctly, it takes maybe three minutes to kick down the two steps to the normal idle speed. Does that sound right?
Anyway, the problem is that now it stays at the highest idle speed for 15 minutes. Eventually it kicks down to normal. But the high idle speed is too much for 15 minutes. Plus as it warms up the high idle speed becomes even higher since it doesn't kick down like it should. So it becomes difficult to keep the speed below 25 mph even w/out pressing on the gas pedal. It idles at about 25 mph for 15 minutes as it warms up!
I looked at my Chilton's manual -- better than nothing, but barely -- and it mentions something about a vacuum choke kickdown, a heat riser gadget, and the auto-choke. How to test each one to find what the problem is?
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I have a 98 Silverado with 5.0 liter, 2 wheel drive. When cold it idles at 30 mph plus. When warmed up it runs just fine. This can be very challenging in icy weather. I have changed the temp sensor, cleaned mass air sensor, etc.
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I have a 1994 Dodge Ram 1500 with the 5.2L V8 (and 46RH AT), with 147,000 miles. Here's what I've been noticing over the past few months: when the engine is up to full operating temperature, and the truck is in gear but idling, the oil pressure (according to the oil pressure gauge) gets very low, and in fact, the needle often "bottoms out", going to a reading of "0", and the "dummy light" comes on. When this happens, there's no change whatsoever in how the engine is running; it runs perfectly fine (which is why I haven't bothered to fix it). Also, as soon as the engine is given a little throttle, the pressure reading goes back up and behaves normally under driving conditions (unless at idle). As mentioned, this only happens when the engine is completely warmed up.
I check the oil regularly, and it is always within the acceptable range.
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I have an '88 Dakota, 230K miles, with the following problem:For the last month or so, the truck has been hard to start--had to crank once, wait 10 seconds or so, then crank again. Gradually, this problem increased to the point where it would stumble at WOT, then even at 3/4 throttle or so.Thinking it was the fuel pump, I replaced it, along with the filter.
Problem remains; in fact, it seems even worse, to the point where the truck only idles (can't put any load on it, or it stumbles). So, at this point I suspect the fuel pressure regulator. However, I don't want to buy it unnecessarily. Given that a F.P.R. is designed to send a part of the pump output back, would pinching off part/all of the return line be a valid diagnostic test?Anything else that comes to mind?
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My 1992 chevy s-10 is running really bad it idles high ( like around 2000 rpm to 1000 rpm) it starts high then slows down. Then when i drive it, it kinda stumbles. Iguess u can say it makes all kinds of noises and beats and bangs and if I am going up a hill some times it shuts off. It has a manual trany and a stock 4.3 motor. I need the truck to get back and forth to work....
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