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Car Forum / Honda Cars / September 200798 Civic Stumble, Hesitation when cold (only lasting 10-15 seconds)... help appreciated!
Hey guys I have a 98 civic, lately ive been noticing when driving on a cold engine, at some point within the first 5 minutes the car will stumble or hesitate idle and almost die... this only seems to happen on a cold engine, or if I let the car sit a few hours. This also only happens for about 10-15 seconds and then the car seems fine afterwards. It happens both on the fly or sometimes when I'm stopped. Its almost like the car is misfiring or in some way not getting gas. But it only happens at one time (so far anyways) when the car is cold for a very short period. I would like to fix this problem before it becomes worse...each day seems to be getting a little worse. Any help would be greatly appreciated. 85miles <85miles@gmail.com> wrote in news:1190313579.046801.223120 @o80g2000hse.googlegroups.com: > Hey guys > I have a 98 civic, lately ive been noticing when driving on a cold [quoted text clipped - 12 lines] > > Any help would be greatly appreciated. Check head gasket.  SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ > Hey guys > I have a 98 civic, lately ive been noticing when driving on a cold [quoted text clipped - 12 lines] > > Any help would be greatly appreciated. how long since the distributor cap was last replaced? i'd check that and the ignition parts in general. > Hey guys > I have a 98 civic, lately ive been noticing when driving on a cold [quoted text clipped - 12 lines] > > Any help would be greatly appreciated. ================================== I'd fill the reservoir to the MAX mark and watch if for three days. If it drops, fill it again until it stops. I think you have AIR in your cooling system. If the symptom persists, get the valves adjusted. Has it ever stalled at a stop light during the warm-up cycle? 'Curly' > Hey guys > I have a 98 civic, lately ive been noticing when driving on a cold [quoted text clipped - 12 lines] > > Any help would be greatly appreciated. If you have platinum spark plugs: Replace them with OEM NGK plugs and the problem will disappear. Marco >> Hey guys >> I have a 98 civic, lately ive been noticing when driving on a cold [quoted text clipped - 17 lines] > > Marco Explanation: Platinum plugs are meant to be used for like 3% or 4% of your car's life. They are good for cleaning the carbon out of cylinders. If the engine is already clean of carbon, then the platinum will cause pre-detonation. Platinum is a catalyst. In effect, it accelerates the burning of hydrocarbons. Carbon deposits on pistons and valves in the cylinder will be burned off by the platinum on Platinum plugs. When the engine is clean, the platinum becomes a demon. I learned this the hard way. Extra platinum leads to piston holes. Marco <snip> > Platinum plugs are meant to be used for like 3% or 4% of your car's > life. They are good for cleaning the carbon out of cylinders. [quoted text clipped - 11 lines] > > Marco I forgot to mention spun bearings, knocking rods, burned valves, and the myriad other problems unexplained until platinum plugs are entered into the mix. Use them according to your owners manual. If in doubt, don't use them and use OEM standards instead. Anyways, your symptoms exactly match this prognosis, and it brought up long repressed memories for me.. :-) Marco > Platinum plugs are meant to be used for like 3% or 4% of your car's > life. They are good for cleaning the carbon out of cylinders. [quoted text clipped - 9 lines] > > I learned this the hard way. Extra platinum leads to piston holes. I have no idea where you got all this from, but it's all nonsense. Platinum is used on spark plug electrodes primarily because it resists erosion, thus leading to longer electrode life. It is NOT used on plugs for the purposes of combusting hydrocarbons. You are confusing the functions of platinum on spark plugs with the platinum used in catalytic converters. Same metal, different operating environment and different effects. If you put holes in your pistons at some point, you had /major/ detonation problems that were due to excessively advanced ignition timing, or a very lean mixture. The plugs had zero to do with it. SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ <snip crap> > I have no idea where you got all this from, but it's all nonsense. > [quoted text clipped - 10 lines] > detonation problems that were due to excessively advanced ignition > timing, or a very lean mixture. The plugs had zero to do with it. why did you respond? that guy is either a fruit loop or a troll. either way, he's beyond help and should only be ignored. > <snip crap> <snip> > why did you respond? that guy is either a fruit loop or a troll. either > way, he's beyond help and should only be ignored. http://en.wikipedia.org/wiki/Killfile marco > <snip crap> >> [quoted text clipped - 15 lines] > why did you respond? that guy is either a fruit loop or a troll. > either way, he's beyond help and should only be ignored. I responded in the hopes of preventing anybody from believing such silliness. SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ >> Platinum plugs are meant to be used for like 3% or 4% of your car's >> life. They are good for cleaning the carbon out of cylinders. [quoted text clipped - 24 lines] > detonation problems that were due to excessively advanced ignition > timing, or a very lean mixture. The plugs had zero to do with it. I never got holes in the pistons, etc. I was just passing on what you're telling me is bad information. I got most of it from a mechanic who preached on about the hazards of using platinum plugs, and the only reason I believed the guy is because he solved my problem by replacing my platinum plugs with OEM plugs. I had spent a couple hundred bucks replacing plug wires, distributor, etc.. to no avail. I even replaced the platinum plugs with new platinum plugs. :) Same symptoms as the OP, but in my case, the engine would occasionally stop so hard that I went through 2 timing belts, and the timing(distributor and belt) were exactly where they were supposed to be.. If the fuel mixture in the cylinder fires early, before the piston reaches the top... you tell me? So, I got fed up and took it to the mechanic.. At any rate.. Even if I guilty of passing an urban myth, I do know that $4.50 worth of spark plugs (plus $25 labor) saved my engine and my sanity. Apparently, I don't know *exactly* why that is. marco > I got most of it from a mechanic who preached on about the hazards of > using platinum plugs, He's not too knowledgeable if he's preaching that. > and the only reason I believed the guy is > because he solved my problem by replacing my platinum plugs with OEM > plugs. Spark strength is a function of the coil, not of the platinum in the plugs. Platinum plugs cannot make a big fat spark from a weak coil signal. If the platinum plugs were NOT of OEM specification, there arises the possibility that they were of the wrong heat range. If they were too hot for the combustion chamber's characteristics, they may begin to glow, causing pre-ignition and excessive pressures. > I had spent a couple hundred bucks replacing plug wires, distributor, > etc.. to no avail. I even replaced the platinum plugs with new [quoted text clipped - 5 lines] > be.. If the fuel mixture in the cylinder fires early, before the > piston reaches the top... you tell me? Timing was way off, I'll bet. Did you check the timing with a timing light? A visual inspection of the distributor is not accurate enough. Just a few degrees excessive advance can cause severe engine problems. > So, I got fed up and took it to the mechanic.. > > At any rate.. Even if I guilty of passing an urban myth, You are, unfortunately. I could not let this nonsense pass, lest others be tempted to believe it. I do know > that $4.50 worth of spark plugs (plus $25 labor) saved my engine and > my sanity. Apparently, I don't know *exactly* why that is. Likely because you replaced plugs that were the wrong heat range with ones that were correct, plus the timing probably was reset properly with a timing light. SignatureTegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
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