swainsonsthrenody Posted January 22, 2008 Share Posted January 22, 2008 whatever the season. I did a service and told the tech about it awhile ago and he fixed it free of charge, saying it was gunk clogging something. I just forget what it was he said he did--he said it took a couple of seconds. After about six months the problem came back but I was told by three different techs three different theories which sounded like nothing the nice tech in Oregon told me he did, so I keep having to gas the idle when the engine is cold--a pain in traffic and on hills. The local Totota dealer here in NY (I now live in NY) said it was a $1000 + job to fix and I was like yeah right they don't do helpful fixes for blokes what work for their money--what did that other dude DO? SO, can anyone help tell me what gets gunked up? Fuel injector treatment seems to help a teeny tiny bit better but it still stalls when just started and for about five minutes after. After five minutes of driving, it still idles rough till a little warmer...How does the fuel injector system work--is it an atomizer? Could it get clogged? Is there just one or four? Where are they how do I get at 'em? I had this tech do that little trick every six months over the course of 18 and it worked each time but what did he do!!? hahaha --asking him is not an option or I would...heh heh...Again when the engine is warm, it idles just like paradise even in bloody cold weather Quote Link to comment Share on other sites More sharing options...
Leighcm Posted January 22, 2008 Share Posted January 22, 2008 Fuel filter, probably. Quote Link to comment Share on other sites More sharing options...
swainsonsthrenody Posted January 25, 2008 Author Share Posted January 25, 2008 Thanks, I will definitely give replacement of fuel filter a try, but that wasn't what the old geezer out in Oregon did. What are fuel injectors, exactly and are they easy to clean as a novice with decent ability? Do they have an atomizer which sprays fuel like in a carb and get dirty? Are they easy to replace by someone like me? Where are they located? (I will be trying to figure this out myself but any advice would be awesome) Swain Quote Link to comment Share on other sites More sharing options...
Leighcm Posted January 25, 2008 Share Posted January 25, 2008 He probably dumped fuel injector cleaner in it...you can buy that at AutoZone, etc. It may be too gunked up at this point to help. I think you'll definitely want to replace the filter first before you try to mess with the injectors yourself. Quote Link to comment Share on other sites More sharing options...
Leighcm Posted January 25, 2008 Share Posted January 25, 2008 A couple things for you to look at: http://www.ehow.com/how_2044858_clean-fuel-injectors.html http://www.autoshop101.com/forms/h22.pdf Quote Link to comment Share on other sites More sharing options...
B-R-T Posted February 7, 2008 Share Posted February 7, 2008 Fuel filter, probably. if it would be the fuel system it would had bad idle even when the car is warmed-up Quote Link to comment Share on other sites More sharing options...
B-R-T Posted February 7, 2008 Share Posted February 7, 2008 whatever the season. I did a service and told the tech about it awhile ago and he fixed it free of charge, saying it was gunk clogging something. I just forget what it was he said he did--he said it took a couple of seconds. After about six months the problem came back but I was told by three different techs three different theories which sounded like nothing the nice tech in Oregon told me he did, so I keep having to gas the idle when the engine is cold--a pain in traffic and on hills. The local Totota dealer here in NY (I now live in NY) said it was a $1000 + job to fix and I was like yeah right they don't do helpful fixes for blokes what work for their money--what did that other dude DO? SO, can anyone help tell me what gets gunked up? Fuel injector treatment seems to help a teeny tiny bit better but it still stalls when just started and for about five minutes after. After five minutes of driving, it still idles rough till a little warmer...How does the fuel injector system work--is it an atomizer? Could it get clogged? Is there just one or four? Where are they how do I get at 'em? I had this tech do that little trick every six months over the course of 18 and it worked each time but what did he do!!? hahaha --asking him is not an option or I would...heh heh...Again when the engine is warm, it idles just like paradise even in bloody cold weather vacuum system, ignition system, coolant temp sensor, idle air control valve. Probably cylinder head deformation. Compression is low when head is cold. when it heats up, aluminum expands and compression slightly increases. but thats the worst case. first check for vacuum leaks. start the engine, open the hood and listen for hissing sound. check vacuum hoses Quote Link to comment Share on other sites More sharing options...
dapqam Posted February 7, 2008 Share Posted February 7, 2008 I agree that dirty fuel injectors would be a problem whether hot or cold. It sounds like your fuel air mixture might not be right at cold temps. Ever think of moving to FLorida? HA HA. Does this problem occur during startup on rainy days? If so it could be electrical. Like distrubutor cap. I had that once with my 95 Camry at 120,000 miles. Quote Link to comment Share on other sites More sharing options...
B-R-T Posted February 14, 2008 Share Posted February 14, 2008 ...saying it was gunk clogging something. I just forget what it was he said... EVAP hose? Quote Link to comment Share on other sites More sharing options...
toyfan Posted February 17, 2008 Share Posted February 17, 2008 probably cleaned throttle plate Quote Link to comment Share on other sites More sharing options...
B-R-T Posted February 17, 2008 Share Posted February 17, 2008 SO, can anyone help tell me what gets gunked up? Breather hose, EVAP purge hose, vacuum hose, idle air control valve. I doubt about throttle plate, cuz my throttle is gunked up. It only affects gas pedal response after a heavy load, when alot of vacuum is created. It doesn't have anything to do with "cold" idle. Unless throttle is electronicaly controlled (with stepper motor). I don't think it could be fuel system, but you could check fuel pressure, just in case.. If injectors or ignition system are bad DTC (misfire) will be generated. Quote Link to comment Share on other sites More sharing options...
rianlee Posted March 12, 2008 Share Posted March 12, 2008 Breather hose, EVAP purge hose, vacuum hose, idle air control valve.I doubt about throttle plate, cuz my throttle is gunked up. It only affects gas pedal response after a heavy load, when alot of vacuum is created. It doesn't have anything to do with "cold" idle. Unless throttle is electronicaly controlled (with stepper motor). I don't think it could be fuel system, but you could check fuel pressure, just in case.. If injectors or ignition system are bad DTC (misfire) will be generated. throttle body/plate gets carbon on it and reduces the amount of air getting to the engine. this causes the engine to be lean. get intake cleaner and spray throttle plate. don't be afraid of using to much the more the better and wipe the plate with a rag or old toothbrush. when spraying hold the throttle open to get the inside part of the plate. a gunked up throttle plate will affect idle. a lean condition will cause a low idle. throttle postion has everything to do with idle ecspecialy cold. electronic throttle is not affected by carbon nearly as much as cable control. Quote Link to comment Share on other sites More sharing options...
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