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Car Forum / Chevrolet / Chevrolet Malibu / August 20052000 malibu surging
i have a 2000 model Malibu that feels like its surging in overdrive. was first doing this while dringing up a hill but now its surging all the time , you can see the rpm gauge fluctuate but when i shift out of drive to 3rd the surging stops. is this a transmission problem? or maybe a sensor problem under hood? the car has 100.000 mile on it. i had the transmission filter and fluid changed but still the same problem. can any advise me what to do? thanks in advance. WcToby: Check your brake switch. These cars have a 2-switch brake switch. One actuates the brake lights, the other allows (or disengages) the lockup torque converter. Just cuz your brake lights work properly does not mean the torque converter clutch controller is... On my 2000, if, when it happens, I place my foot UNDER the brake pedal and lift up the slight amount available, the surging stops immediately. One other thing you might notice - if you're riding along, and, when the symptoms occur, you drop out of cruise control, that's another positive indicator. Good luck! >i have a 2000 model Malibu that feels like its surging in overdrive. was >first doing this while dringing up a hill but now its surging all the time [quoted text clipped - 5 lines] > thanks in advance. > WcToby: will i tried what you suggested and that didn't work. the dealer said its a sellanoid in the transmission and they had to drop the chassis to get to the side of the transmission . part wpuld run under 40 dollars. labor would be around 6 hrs. > Check your brake switch. These cars have a 2-switch brake switch. One > actuates the brake lights, the other allows (or disengages) the lockup [quoted text clipped - 19 lines] >> thanks in advance. >> WcToby: Do you know what solenoid they are replacing? My Malibu is doing the same exact thing and I would love to get it fixed once and for all. The 2 dealers I have went to haven't had much luck with mine so far. no i dont know the name of the part, all i know its on the side of the transmission . hard to get to i guess.but if i find out i'll let you know > Do you know what solenoid they are replacing? My Malibu is doing the same > exact thing and I would love to get it fixed once and for all. The 2 > dealers I have went to haven't had much luck with mine so far. That would be great. yeah there are 3 or 4 solenoids on the side on the transmission, my guess is they are replacing your pressure control solenoid or your torgue convertor solenoid. Let me know if their solution solves your problem. > i have a 2000 model Malibu that feels like its surging in > overdrive. was [quoted text clipped - 10 lines] > thanks in advance. > WcToby: Have you had the opportunity to have the transmission repaired on your Malibu? My 2000 is also surging and the dealer cannot find the problem. Any hints would be appreciated. Also regarding the previous posting about the overheating: I have replaced the intake manifold gasket twice and the water pump once on my 2000. If the water pump is bad there will probably be coolant on the underside of the hood. It will be characterized by a line of coolant running from the front to the back of the hood pad. I had the water pump replaced on my 2000, it started leaking again, I put stop-leak in the coolant, ($2.00) the leak stopped the next day, problem gone for months now. > I had the water pump replaced on my 2000, it started leaking again, I put > stop-leak in the coolant, ($2.00) the leak stopped the next day, problem > gone for months now. I also had a coolant leak, which was traced back to the intakek manifold gasket - fortunately, my mechanic was not a GM mechanic, and knew that there was an aftermarket gasket that rectified the leak, as the OEM ones still have the flaw. An expensive repair, but it's fixed for good now - I've put over 50,000 km on the car since with no problems. TOP POST!!!!!!! To e honest it is not the gasket at all. I am a "GM Mechaic"" The problem really is in how the factory and people who say they can fix it do not torx the intake bolts down enough or use a thred sealer....Not saying aftermarket isnt better...Most of the ones I have done has been because the bolts loosen And in the block valley where the sealant blows out and leake oil...Usually you will see it start after 50-60,000 miles...But on the other hand glad to hear youre is fine...... S Cook Re: 2000 malibu surging Group: alt.autos.chevrolet.malibu Date: Thu, May 19, 2005, 2:11pm (CDT-2) From: bass-player@rogers.com Rob shannon via CarKB.com wrote: I had the water pump replaced on my 2000, it started leaking again, I put stop-leak in the coolant, ($2.00) the leak stopped the next day, problem gone for months now. I also had a coolant leak, which was traced back to the intakek manifold gasket - fortunately, my mechanic was not a GM mechanic, and knew that there was an aftermarket gasket that rectified the leak, as the OEM ones still have the flaw. An expensive repair, but it's fixed for good now - I've put over 50,000 km on the car since with no problems. > TOP POST!!!!!!! > To e honest it is not the gasket at all. I am a "GM Mechaic"" The [quoted text clipped - 8 lines] > >snip< Howdy Steve I've all ways used locktite blue/ with a rtf bead at the bolt head. Had a prob with that one time when the bolt was a current path. Datson thremastat elbow, water inlet with the temp senser threaded into it. Cleaned it off and used aluminum grease on the threads instead. I allways have to remember to leave a good ground return path for sensors.  SignatureThrockmorton P. Ruddygore |
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