Question about Chevrolet Silverado 1500
My 99 zr2 cuts out when you hit a certain speed. i have to either speed up or slow down to get it to quit. It mostly happens when its damp or moist outside.
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Posted on Jan 02, 2017
SOURCE: keeps cutting out!
My golf (2000) was doing the same to me. it occured to be the faulty EGR valve (it was closing and cutting the engin off) needed to have it replaced
Posted on Oct 28, 2008
Had same problem: cutting out at low rpm, jerking, a huge clunk or shudder at higher speed (like transmission was going out), and rough idle. All these symptoms were intermittent.
CHECK THE FUEL FILTER!! Changed the fuel filter and thing runs fine!!
PS mine 2003 expedition has 105k
Posted on Jan 05, 2009
i have the exact same car. And after a lot of searching, found the EXACT cause for this. Its your TCC switch (torque converter clutch switch). It has somethign to do with your transmission, and kicking the car into overdrive at certain speeds for fuel economy. Anyway, mine would stall out after driving for more than 15- 20 minutes, especially at highway speeds, which when you think about it - is the speed if you had a manual/stick - you would be shifting into the highest gear. Well, this chip or whatever it is basically gets "stuck" in high gear. And when you come to a stop, its like trying to get going in 4th gear on a manual from a dead stop. NOT happening!
I checked with a few people and did some searchign online - and found out all you have to do is unplug the wire leading into your transmission (not a car guy so I'm not sure exactlyif that's what its plugged to, but on mine ,same model and year as yours, it was blue on the very front on the engine way down dead center almost if you're standing in the front of the car looking down). I believe it was a 4pin connector when you unplug it, but I'd have to go doublecheck. NOthing at all bad happens from donig this - all it does is you lose about 3-5 mpg when you drive. I still get 25-27 mpg. If your car isn't in awesome codition and you dont want the headache of some mechanic taking everything apart to get inside the transmission to replace a dumb chip that just kicks your car into overdrive, I'd go this route. Worked for me.
I have checked all over online - and everyone who had this problem and unplugged it, had no problems ever. NO side effects. One guy says he's run up 100,000 miles since then and still runs like a top! If you need more info or whatever - email me. I dont mind. I'd love to know I'm helping someone out so they dont have to deal with it as long as I did! email@example.com
Posted on May 21, 2009
Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake
Posted on Jun 18, 2009
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