rgreen4 Posted September 24, 2012 Report Share Posted September 24, 2012 I have a 98 T5 V70 w/ 222k, I had to have the electrical portion of the ignition switch replaced a few months ago and ever since the car would stall if you put it in gear right after starting it when the engine was cold. This would happen when the car was starting to accelerate. The engine will always restart but it turns over a few extra seconds before catching, I notice some extra exhaust smoke when it does start. Laterly I've been starting it and letting it run at idle just to warm up then it won't stall and it will accelerate normally, once it has started and running it will not stall for the rest of the day as long as the engine was still even slightly warm. Link to comment Share on other sites More sharing options...
mune237 Posted September 24, 2012 Report Share Posted September 24, 2012 When was the last tune-up? Link to comment Share on other sites More sharing options...
Fishey Posted September 24, 2012 Report Share Posted September 24, 2012 Clean throttle body and you will solve your issue more then likely. Takes only a few minutes. Link to comment Share on other sites More sharing options...
troyhyde Posted September 25, 2012 Report Share Posted September 25, 2012 Clean your IAC valve. Link to comment Share on other sites More sharing options...
rgreen4 Posted September 26, 2012 Author Report Share Posted September 26, 2012 Thanks for the replys Tuned up w/ new plugs wires cap & rotor within the last year. Where is the IAC valve and how does one clean it and the throttle body, just sray them w/ carb cleaner? Link to comment Share on other sites More sharing options...
NEU Posted September 26, 2012 Report Share Posted September 26, 2012 Link to comment Share on other sites More sharing options...
erikv11 Posted September 26, 2012 Report Share Posted September 26, 2012 Throttle body you want to use carb cleaner and wipe it out with a cloth. You'll have to take off the intake hose. Wipe both sides of the throttle plate, reach into the throttle body with your fingers. IAC is the metal cylinder at the intake. You need to take it off, spray carb cleaner into it, shake it around and then dump out the carb cleaner. Do this a couple times, until it runs clean and the spring-loaded valve inside rotates pretty easily. Link to comment Share on other sites More sharing options...
NEU Posted September 26, 2012 Report Share Posted September 26, 2012 You want to use throttle body cleaner. Carb cleaner is more harsh to the sensors around the TB (like the throttle position sensor) because it's formulated to remove heavy varnishes found in carburetors. Link to comment Share on other sites More sharing options...
erikv11 Posted September 26, 2012 Report Share Posted September 26, 2012 Which is why I say spray the carb cleaner on a cloth and wipe it out, anything you just spray in there isn't going to do the job anyway ... but sure, that is good advice. IAC I always remove first and use straight carb cleaner. No? Link to comment Share on other sites More sharing options...
NEU Posted September 26, 2012 Report Share Posted September 26, 2012 use carb cleaner and wipe it out with a cloth Which is why I say spray the carb cleaner on a cloth and wipe it out You didn't say that in your first post now did you... I just spray it down with TB cleaner, I don't use a cloth to wipe out anything. My point is that if you use the right stuff you don't have to worry about ruining anything either... ;) Link to comment Share on other sites More sharing options...
erikv11 Posted September 27, 2012 Report Share Posted September 27, 2012 Yeah, I wouldn't spray carb cleaner anywhere in the engine bay. I understand why you caution against it. If you read in my post, the word "spray" only shows up when I talk about cleaning the IAC, *after* you have removed it. Not sure why it was unclear, devil is in the details I suppose. But whatever, OP knows some options now. I'm all for the right tool for the job, but at the same time I have to roll my eyes at the stupid marketing game that invents a separate cleaning product for every part under the hood. CRC sells the same thing as "electronic parts cleaner" and "MAF sensor cleaner" so do we need a can of each on the garage shelf? Do they also sell "alternator cleaner" now? Sensibly applied carb cleaner inside the throttle body is not going to ruin anything, and will probably dissolve old crud better than "throttle body cleaner." I am still curious about this one though: what about the IAC, any reason not to use carb cleaner there? That's the method always posted, and what I have always done, your post made me curious for opinions on that. Link to comment Share on other sites More sharing options...
CBoosT5 Posted September 27, 2012 Report Share Posted September 27, 2012 Any news on this? Link to comment Share on other sites More sharing options...
rgreen4 Posted September 28, 2012 Author Report Share Posted September 28, 2012 I'm going to error on the side of caution and go out to get some TB cleaner for the TB I already have a can of carb cleaner on the shelf fo the IAC. TXS for all the advice. Link to comment Share on other sites More sharing options...
rgreen4 Posted October 1, 2012 Author Report Share Posted October 1, 2012 Well I've got a nice clean TB and IAC but that didn't solve the problem, starts just fine as soon as I put it in gear to move it the car goes about 10 ft and stalls, if I start it and let it run for about a minute everythings fine. Link to comment Share on other sites More sharing options...
CBoosT5 Posted October 1, 2012 Report Share Posted October 1, 2012 Check Fuel Pump Relay. Also, Check voltage at TPS sensor. Did you check the maf, any disconnected intercooler hoses? Link to comment Share on other sites More sharing options...
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