Chevrolet - Camaro :: Loud Backfire And Loss Of Power
Aug 25, 2012
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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I have a 1999 Mercury Mountaineer 5.0L V8. It just recently began acting up. After warming up the engine goes through heavy power loss and inability to climb ANY hill. Usually cannot get above 30-35. I just recently replaced plugs and wires for a tune up and a faulty coil pack (approximately 5-6 weeks ago) causing a misfire on 8. Today in troubleshooting I attempted the "Backyard Mechanic" trick of unplugging the MAF sensor and took it down the road, no change at all in acceleration issues or on idle, truck runs the same. Unable to spot any exhaust or vacuum leaks or issues, recently cleaned MAF housing and changed Air Filter as well. All of these issues arose after a heavy ice storm, do not know if this had any impact or was just bad timing.
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I have a 2003 Chevy Malibu, V6, 3.1, auto, 140k miles. Car started out with code 0420 with no noticeable symptoms, but then added code 0303 (miss fire cyl #3) with loud knock (mostly after warmup) and loss of power under load. Now internal loss of coolant (no puddles or external drips). Changed plugs and wires - no change - all plugs looked good with no sign of contamination. Questions - if this is a valve/piston/lifter problem (which would explain the knock, miss-fire and loss of power), why would I get the loss in coolant? If the loss of coolant is fouling plug #3 (which would explain the coolant loss, miss fire and loss of power), could that give me the loud knocking? I don't see how a valve/piston/lifter issue would cause a leak in coolant but I also don't see how a coolant leak into cyl #3 would give me such a loud knock. Do I have two different problems? If it is a leak into cyl #3, is there any way to tell if it is the intake manifold gasket (which leaked before and was replaced five-six years ago and which I could do again if I had to) or a blown head gasket (which I don't think I could fix or afford to get fixed)? Engine will occasionally get hot (but not overheat).
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OK about 3 months ago I bought my first vw, a 99 Passat 1.8t. Car was great. Only problem at the time was a loud backfire while down shifting no clue on y either. Let me say this is my first turboed car too. Anyway after about 2-3 days my cel came on. I threw my scanner on it and got evap leak. I filled her up right after that and smelled real bad gas. Found a screw hole in the trunk patched it cleared the code an she ran great again. Well for a few days now after every fill up I have to keep my foot on the throttle or it stalls out. Keep getting same code. Also when I go to jump on it it'll like studdar an hesitate before going. No more gas smell either. The kid I bought her from did some work an I'm getting 15lbs of boost but at times will jump to 17-18 lbs. I have no problem doing the work to get just need some guidance on what to do. I've been told change charcoal canister, fuel filter charcoal canister purge valve, I guess there's 2 cause I was told to change both. I love this car, this is the best and my favorite car I've ever had. J wanna get her all nice and healthy.
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First there was a loud pop as if a hose came off and a power loss - don't seem to see any hose disconnected. Happened to me once and seemed to return to normal and then happened to my son. Have not driven since the last time. Both times pulling a boat.
Second issue has been going on since I got the truck - bought used apprx. a year ago - believe it to be stock. The time from pushing accelerator until actual kick in is very elongated - sometimes worse than others but very long on the worst side. Usually noticed when needing to pass on the highway. Once kicked in truck runs well.
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Pulled out of the restaurant I ate dinner at tonight and I lost most power and there's a loud air sucking sound. I felt around all the boots and didn't feel any air, but it was really hot and couldn't feel a whole bunch. It's a 2003 7.3 with 295k. There is a little smoke/soot coming from the turbo area, any chance that's related? I'm perplexed...
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I recently purchased for my son a 1986 camaro 2.8 MFI v6 the car had been sitting for over a year in the previous owner's back yard because it would not start.I have had a mechanic do the following: heads redone, replace the distributor, replace the timing chain and gears, new wires, and emptied the fuel tank and replaced the fuel filter.
I picked up the car and it ran for about two week no problem. Then it started diying occasionally when you let of the gas to come to a stop, so he replaced the fuel relay switch thinking that it may be going bad. The next day he had been driving it about 15 miles when it just died and would not restart. We shot a little starting fluid to see if we could get it to start and get it back home. it fired up and ran all the way home and died when turning into the driveway. and would not start again.
We replace the fuel regulator the car started right up and he took it for a test drive. The car ran about 4 miles, long enough to warm up and died again and would start. and again we were about to get it started with starting fluid to get it back home. pulled in the driveway and it dies. again it would not start, let it sit all night and the next morning still would not start finally got it to start with a squirt of starting fluid and moved it into the garage. shut if off and then tried to start it and it worked 5 times in a row.
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I have a 2000 Chevy Camaro. Two years ago my catalytic converter went out and I had it replaced. 20,000 miles later my mechanic says that I need to replace it again. Is this accurate? I thought the life of a Catalytic Converter was much longer.
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A year ago my 1998 chevy camaro 6 cyl eng. randomly did not start. Then came back to it 15 min later and it started right up and did not give me another problem.3 months ago it did the same thing, but then would go a week at least with no more trouble sometimes longer sometimes more frequent.
within this past month it has become very frequent and I have had to push start it with the clutch a few times to get to work. It starts right up when I pop the clutch every time. Now the car will not start with the key no matter what.
Some more details on what it does now - When I first get in it after it has sat a little while you can hear the starter solenoid click the first three times or so when I turn the key. After that you do not hear the solenoid click anymore, but the relay up under the hood clicks every time with the key. (for kicks I even swapped the starter relay and the ignition relay with no change)
The battery is fairly new, but I load checked it anyway and it is perfect, plus I tried another good battery and jumper cables from a battery in a running car so that's not the problem. I have cleaned all corrosion off terminals and the ground to the engine and to the car.
I checked the resistance of the little piece on each of two ignition keys and they check fine.
I have checked the clutch switch down by the pedal multiple ways. checked resistance of the switch, voltage when the key is on and jumpering the plug with a paper clip.
when I push start the car and have it running I can turn the key with the clutch out nothing happens, but if I push the clutch in the starter will engage (grind) every time (I didnt do this a lot). this tells me that the clutch switch is working and the started is working right?
I did switch the starter out with another used unit and it did the same thing.
I unhooked the alternator on the off chance a short in that was drawing too much juice and not giving enough to the starter (I know I am really reaching here).
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2000 Camaro, v6 auto, 103000 miles, 2 years ago car started making a roaring noise in the rear. the faster i go the louder it gets. if i let off the gas it almost goes away. at high speed over 90 the rear vibrates. noticed today that if i push on rear fender there is a clunking noise coming from rear wheel. checked lug nuts and they are tight. Is it unsafe to drive?
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I have a 2002 bettle with about 150k on it. was running fine and one day while the wife was driving it she heard a loud pop/bang and it started missing and has low power. Starts fine just dosent have much power and is missing on one cylinder.
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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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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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I keep good maintenance for my car. Just had the 45,000 mile major tune up also. However, the engine overheating light came on the other day - said I should idle until it cooled down. I was just about to park, so I did that and left to do some shopping. When I came back and started the drive home the light came on again and indicated I should stop and turn the engine off. I drove two more blocks and put the car in the garage. I noticed what I thought was some leakage on the garage floor also. Next AM, I had it towed to the dealership since I'd checked the coolant dipstick and it looked EMPTY!. Dealership tested it out and could find nothing wrong - no leaks, no computer faults either. They sent me on my way and neither warning light has come on since. I've kept an eye on the engine temperature gauge and it hovers around 200F - mid range on the gauge. No further problems. Funny thing is, now my A/C seems to operate better!
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I have a 2000 z28 Camaro, and I'm having problems with it slipping at high speed. and I noticed today that fluid is leaking and the car loses power as it warms up. it runs great starts right up, just having problems with the tranny. What may be going on, I do check the fluid and fill it when it needs it. and it runs great until I need to get up to around 50mph.
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I have a 1979 Chevy Camaro and whenever I turn the car on so it only lights up my dash, my RPM gauge goes all over the place, and the engine isn't even turn on yet. And also before i even put the keys in the ignition, the RPM is sitting at 10.
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2002 Camaro SS. Been sitting in my garage and I have not started it for 2 months (I know, not smart). So I started it yesterday, it ran for about 20 seconds then just died and I cannot get it to restart. Battery is fully charged, it turns over, I can hear the injectors seemingly shoot fuel when I just turn the key into accessory mode, but when I try to start it, it just cranks like it's out of gas and never even gives the slightest hint of trying to turn over completely. There is a 1/4 tank gas, that is at least 2 years old in the car. Also, when it started the first time a ton of black stuff came out of the tail pipes.
Bad gas? Fuel pump? Not sure which path to go down first.
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I have a 1994 V6 Chevrolet Camaro with ~197K miles. Recently I have noticed that after starting the engine it idles rougher than normal and also as I accelerate, especially between 45 and 65 mph. Several things have just been replaced and/or fixed: spark plugs, spark plug cables, oil, coil packs, water pump, & thermostat. I regularly use premium gasoline and when for some reason a lower octane is used I add an octane booster. Since this problem arose I tried a fuel system cleaner; it hasn't worked thus far. The last time something like this happened, I took my Camaro to a trusted repair shop and when being diagnosed its' cylinder chambers and many different lines flooded with fuel. After replacing the fuel regulator my car returned to normal.
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I have a 98 camaro z28 and im having some problems with my rear end. I am positive its a limited slip. Ive removed the cover from differential and know what a lsd looks like. My problem is when i turn and hit the gas only 1 tire spins. But if im going straight and hit the gas both tires spins. When i say spin i mean break loose. I removed the cover tonight and took a look. No metal shavings at all. It all looks in good conditon. It has a 390 gear in it. Owner before me put it in. I removed the calipers and the axels have a little play in them. About a quarter inch play going in and out. Was wondering if this was normal. Also while it was jacked up i could hold one wheel while spinning the other. And if i play with it i can make the back left tire spin by its self also not making the ring gear move. Is it normal for a wheel to spin and the ring gear not move? I have a lot of questions about differentials. But mainly why am i only getting one tire to spin when turning?
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My '97 camaro has a cracked cylinder. (or something like that; the water keeps getting "consumed" by the engine). my mechanic put something in it that temporarily "sealed" the crack. it bought me more time but now it's not holding on to any water. My question is, can i do this again and is it something i can do myself?
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The owner's manual for my 2010 Camaro states that the passenger seat height can be adjusted by pumping the handle used to slide the seat forward and backward. However, pumping the handle does not change the seat height.
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