My 07 Tahoe that I purchased about a month has almost 95k on it and I wanted to ask what all fluid changes I should have done. I know I'll get the tranny, diffs and transfer done. What about coolant, brake and steering? I'm not really sure what all has been done before so I'm trying to be proactive. Also are they any other things I should look at, plug, plug wires, ect.? Any lube points? Thanks
Fluid Changes
- Thread starter mturnerua
- Start date
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blueflamed03
Supporting Member
Matt, at that mileage, your on the right track.
Differential, tranny and filter, and I would do brakes and coolant. Small investment on a vehicle you hopefully plan to keep awhile.
Check brake pads for wear, make sure no grooves in rotors.
The engines in these are pretty much bulletproof.
Differential, tranny and filter, and I would do brakes and coolant. Small investment on a vehicle you hopefully plan to keep awhile.
Check brake pads for wear, make sure no grooves in rotors.
The engines in these are pretty much bulletproof.
Yeah I'll be keeping it a while, the wife's tired of my vehicle changes. What are your thoughts on plugs, plug wires and throttle body cleaning? Also I've heard a little about it but what is the benefit, and cost, of the Corvette servo for the transmission?
What are your thoughts on plugs, plug wires and throttle body cleaning? Also I've heard a little about it but what is the benefit, and cost, of the Corvette servo for the transmission?
blueflamed03
Supporting Member
Plugs and plug wires may be ok, if truck runs smooth now, leave it, but a possible change soon.
Throttle body cleaning is easy, just take stock box off and clean outside and inside TB really good, takes about 10 minutes and idles much smoother.
The vette servo helps 'firm' up the shifts. GM made these transmissions transition slowly from gear to gear, which is good for an old couple, but it's heat, and hard to the clutches in the transmission.
I nice firm shift is easier and has less wear on stock internal parts.
A vette servo will help firm those up, and is a relatively cheap purchase. Like $40 off Oregon Performance on Ebay, or search them on the web.
A tranny shop can install that, while you are having tranny pan/fluid anyway.
Of course the best thing i have done to mine is the Black Bear tune. It firmed up the tranny shifts, gave me way more power and I gained 2 MPG. Passing gear is alot funner now
Throttle body cleaning is easy, just take stock box off and clean outside and inside TB really good, takes about 10 minutes and idles much smoother.
The vette servo helps 'firm' up the shifts. GM made these transmissions transition slowly from gear to gear, which is good for an old couple, but it's heat, and hard to the clutches in the transmission.
I nice firm shift is easier and has less wear on stock internal parts.
A vette servo will help firm those up, and is a relatively cheap purchase. Like $40 off Oregon Performance on Ebay, or search them on the web.
A tranny shop can install that, while you are having tranny pan/fluid anyway.
Of course the best thing i have done to mine is the Black Bear tune. It firmed up the tranny shifts, gave me way more power and I gained 2 MPG. Passing gear is alot funner now
blueflamed03
Supporting Member
just remove inlet tube, don't take it off, use screwdriver and open throttle plate, and use rag/chemtool to clean it.
So I cleaned the throttle body, replace plugs and wires, and lubed the body and door mounts with PB Blaster. I used Autolite wires and AC Delco iridium plugs. I was kind of surprised at the difference between the condition of the plugs. Here is a few pics of the best and worst one. I assume they were original plugs with 94k on them. I'm looking forward to seeing how much better the idling is and if I get a bump in MPG.
I got the "low oil" message today and I added about 1/2 quart. I hoping this is a normal thing. This is oil that was in it from the dealer when I purchased it so I hope to have a better handle on it when I change the oil with Mobile 1 synthetic and filter next time. Also I got a quote from a local auto shop so I'll be getting all the fluids changed soon.
I got the "low oil" message today and I added about 1/2 quart. I hoping this is a normal thing. This is oil that was in it from the dealer when I purchased it so I hope to have a better handle on it when I change the oil with Mobile 1 synthetic and filter next time. Also I got a quote from a local auto shop so I'll be getting all the fluids changed soon.
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dn ʇǝƃ ʇuɐɔ & llǝɟ ı
good job, Defiantly needed it
North49
TYF Newbie
If your idle is not perfect you may have to remove the throttle body in order to clean the butterfly mating surfaces really well.
It also helps to disconnect the battery to reset the computer to clear any learned corrections it had made for the dirty TB.
Good luck!
So I finally got the coolant flush, tranny flush, front and rear diff change, transfer case change, brake fluid change, and steering fluid change. The mechanic said there were a few shaving in the front and rear diffs but nothing much to worry about. The bummer was that he said the upper and lower ball joints had a good amount of movement and would need to be replaced before too long. Dealer told me there not covered under the 100k so looks like I'll be having those done on my own later. Also got a fuel injector cleaning and maybe its just wishful thinking but it seems to run smoother at idle. Total cost for everything was right at $800. Probably a $300-$400 savings from the dealer.
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