Impala ls 2000 Stalls at high speed - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-15-2014, 03:08 PM   #21
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i would replace the lower manifold gaskets, they are likely as bad or worse than the upper
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Old 01-15-2014, 03:51 PM   #22
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i would replace the lower manifold gaskets, they are likely as bad or worse than the upper
Ok going to check them too, I'm also going to change engine oil and clean the injectors.

I'm considering to buy a silverado ( I'm keeping this car I'm attached to it) are they good?
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Old 01-15-2014, 04:00 PM   #23
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depends what year and what you are going to do with it. the 2001 to 06 5.3 1500'* are the best to have as long as you arent hauling over 7000 lbs. they get good local economy and 20-22 all highway. you plan to daily drive it?
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Old 01-15-2014, 06:57 PM   #24
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depends what year and what you are going to do with it. the 2001 to 06 5.3 1500'* are the best to have as long as you arent hauling over 7000 lbs. they get good local economy and 20-22 all highway. you plan to daily drive it?
Well I was thinking about buying the 2014 one, I'm planning to drive it daily and make roadtrips with it, so far I have no plans to use it to haul things.

I could also get a 2013 in good condition but this time I want to buy a new car or in this case truck.
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Old 01-16-2014, 08:36 AM   #25
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new trucks arent worth the money you lose on depreciation IMO, because the values are over inflated to begin with, then when the truck gets older and normal people buy it they are only going to give normal money. also my opinion, i dont like anything after the 07-08 redesign, tons of flaky expensive to replace stuff. the newer ones dont seem to be getting the mileage they claim either. like i said if i were to buy a newer truck i would look for a 05, 06 5.3 4wd 1500 with lower miles. because they went back to drums, they have the less expensive shocks, less of the extra crap to worry about.
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Old 01-17-2014, 11:21 AM   #26
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Thanks bro!, i didnt knew that about the silverado, what about the tahoe is it good the 2014 model?


back to the impala

i already changed the upper intake, i still have some doubts so if you guys can help me:

i changed the part with the help of a new and good mechanic, i did notice that there was no coolant inside the engine or in the lower intakes, still changed the gasket and cleaned everything, it already had felpro gaskets "weird" and also had a new EGR tube installed.

now the upper intake did had the common failure it still looks like it could hold for some time but it also had a hole (looks like it melted or broke) that lead the air in and the coolant out, its small, but enought to make it drop lot of coolant, what could have done that? or maybe the piece had that problem (since it was used) and i didnt notice?, should i check anythinng?.

my theory was that it was bad installed,or the piece could have been damaged and it was just a matter of time for it to crack.

also the people in the mechanic cleaned the injectors and changed the air filter for free.

(going to upload some pics later, didnt had my phone or camera at the mechanic)

Last edited by danihound; 01-17-2014 at 11:25 AM.
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Old 01-17-2014, 11:40 AM   #27
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the new design dorman ones are thicker in those areas than the gm ones were so they dont do that. i plugged my coolant ports to keep the coolant out if it all together, its plastic, it gets brittle with age and heat cycles

as far as the tahoe or other suv, they are the same as the pickups but even more "trendy status symbols" and are thus twice the price. it sucks for people who could actually use the utility part of that name because i am not paying what they want for those either
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Old 01-17-2014, 08:35 PM   #28
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everything works well i tested it at 46 mph and it didnt stall.

i will try to test it tomorrow in some place safe at 60 mph or more.

also i found new problems, theres a weird sound coming from the side of the accesory belt, i dont know if it could be the water pump the ac compressor (since the sound comes from that place) it sounds like when you shake a can with a bolt inside.

and it catched my attention that the lower radiator hose had a leak, i already changed it.

(im starting to hate the previous owner of this car haha well but that way i learn some of mechanic i guess).

going to upload some pics tomorrow maybe a video (so you guys can hear the sound).
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Old 01-17-2014, 09:49 PM   #29
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relive the tension from the belt and spin the different things, and see if any feel not smooth, they should all be smooth
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Old 01-17-2014, 09:54 PM   #30
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relive the tension from the belt and spin the different things, and see if any feel not smooth, they should all be smooth
thanks, im going to do that : D
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