Last post on Nov 17, 2013 at 7:32 PM
You are in the Chevrolet Suburban & Tahoe
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Chevrolet Tahoe, Chevrolet Tahoe Limited/Z71, SUV
#416 of 762 Re: 97 Chevy Tahoe with P0300 error [lnutt]
Sep 24, 2007 (1:55 pm)
I own a 2004 Chevy Tahoe. At first I started getting codes PO 101, 171 & 174 codes. I would clear them and they wouldn't come back on for awhile. Now I'm getting the PO 300 with the wording “A Boost Perf” after the code. I read my manual on the 300 code and it says it could be several things from bad MAF, Coils, Spark Plugs, Plug Wires, O2 Sensors, etc. I don't recall seeing anything about the fuel pump?
My runs fine, but recently at stops feel like it does have a very slight stumble in the idle. What was your Tahoe doing if anything that made you think it was the fuel pump? I have 69K on my Tahoe and thought that I would start with the O2 sensors. I did have the K&N 5700 Cold Air Intake on it for quit awhile and also the Bully Dog Program. I put the stock Air Filter Box back on and removed the Bully Dog Program, but I'm still getting the same codes. The MAF was dirty so I cleaned it off with carburetor cleaner and let it air dry. I really don't want to waste money and start buying parts and R&R them if they don't need to be. If it's the fuel pump wouldn't it be noticeable? Hard starting, stumbling bad, not making any noises or too much noise, etc?
Any help would be appreciated as I said above I really don't want to waste money on parts that I can't afford or don't need.
#417 of 762 Chevy "performance Inspection" What do they really do?
Sep 27, 2007 (7:46 am)
My 2004 Tahoe, 2 months out of warranty has a coolant leak that I need diagnosed. I was waffling between dealer and local mechanic.
I got a mailer from Chevy today offering a "performance inspection" which includes "we will check vehicles tires, cooling system, climate control/air conditioning system, exhaust, fluid levels,lights and electrical system."
I am thinking it will be cheaper to go in for that than to bring it in to diagnose a problem. I bet they'd charge me a half hour to an hour labor if I brought it in for the leaking coolant.
QUESTION: When they say they will check the "cooling system" what do you think they mean? Do you think they'll pressure test it and visually look for leaks? Or will they check the fluid (which is only a slight bit low-it's not a big leak-yet.)and say it's fine.
It is only 19.99 for this inspection, so I thought I'd start with this, then if they tell me all is well I will question them and mention the coolant that I found in my driveway.
#418 of 762 Re: Chevy "performance Inspection" What do they really do? [whitall]
Sep 27, 2007 (7:58 am)
I suspect for 19.99 they'll open the cap, look at the color of the anti-freeze, see that the level is correct, look to see that the cap seal isn't ripped, look to see if they can see any crude floating around or on the inside fins, look to see that you don't have any obvious visible leaks at hose fittings/clamps, and then realize that it's a couple of years old and suggest to you that you should flush it and replace the anti-freeze.
Stuff you could do yourself.
#419 of 762 Re: Chevy "performance Inspection" What do they really do? [kiawah]
by Stever@Edmunds HOST
Sep 27, 2007 (9:03 am)
I got a mailer this week for my Nissan for a 100 point courtesy check-up. Their factory trained technicians would look at all that stuff and give me a written diagnostic report at no cost or obligation.
I'm tempted to do it just to have my hair stand on end when I see the report with their recommendations to keep my car "operating to its full potential." $$$
Anyway, testing for fluid levels for $20 most likely won't cover a pressure test.
Your question hits home - my ski buddy had to take his Ford into the shop this morning for a leaky radiator - he noticed it dripping coolant while gassing up. He's glad it's just that ($250 estimate) since it could have been the heater core. He goes to an independent shop fwiw.
#420 of 762 Re: Chevy "performance Inspection" What do they really do? [kiawah]
Sep 27, 2007 (10:32 am)
Actually, we couldn't see the hose fitting etc to tell if it was leaking from one. We only see it dripping it off a frame bar. Of course, we didn't lift it up or anything.
I'm hoping they see a hose! I'll turn down a flush and fill, plus the fluid looks really clean.
I wonder what they will say when they call me and say it looks fine (except for that fluid change I agree they'll suggest) and I tell them that they are wrong, and that I know there is a leak....Maybe I'll get lucky and it will drip for them..
I'm still thinking they'd charge me bigger bucks if I took it in with an actual problem, cause they'd know they have me for something
#421 of 762 Re: Chevy "performance Inspection" What do they really do? [whitall]
Sep 28, 2007 (5:57 pm)
whitall said: QUESTION: When they say they will check the "cooling system" what do you think they mean? Do you think they'll pressure test it and visually look for leaks?
That's what they should do when "checking" the system. Don't settle for anything less.
#422 of 762 Re: Chevy "performance Inspection" What do they really do? [whitall]
Sep 28, 2007 (6:01 pm)
Could be leaking for the water pump too. I have an '06 Sub and it developed a small leak at the top of the pump where the radiator hose is attached. It looked like the hose was leaking but the neck of the water pump had a small crack. The repaired it per warranty with a brand new pump and all related parts (water pump parts kits from GM).
#423 of 762 Re: Chevy "performance Inspection" What do they really do? [rockman59]
Sep 29, 2007 (7:44 am)
My husband looked under the truck and couldn't see alot. He did say there was coolant sprayed everywhere. It is probably a lot of blown around by the wind, but I hope this means it's "just" a leak and not something horrible like the heater core or manifolds or some of the other expensive sounding stuff. My husband didn't see any hoses that seemed to be leaking. He mostly say what he thinks are electrical conduits, he said they look like hoses but are metal, so he thinks there are wires inside. His bet is the water pump.
Any thoughts on how likely a dealer concession is on a 2004 w/35ooo miles and warranty ran out near the end of July?? How do I ask for a dealer concession, or is it something I demand? How long should this part last?
#424 of 762 Re: Chevy "performance Inspection" What do they really do? [whitall]
Sep 29, 2007 (9:22 am)
You are over thinking this........you need to be taking action.
If you have 'coolant sprayed everywhere', then this is not a slight drip and you need to get this looked at before you run out of coolant and overheat the engine. If you drive it overheated, you can ruin the engine and have thousands of dollars of repairs. What happens is when the car warms up, pressure builds up in the radiator and will force the coolant out if you have a leaking area somewhere. When the engine and radiator cools down, it stops leaking (because there is no pressure forcing it out).
Get someone technically compentent to look at this, if your husband isn't. Many shops could do this work. Depending on your service and sales relationship with the dealer, and of course depending upon what the problem ends up being, they may comp you on it since your mileage is still low. If they don't, you'll probably pay slightly more at the dealer than you would at an independant shop.
Keep your radiator topped off in the meantime, and get this taken care before you are stranded somewhere or do some real damage.
#425 of 762 Re: Chevy "performance Inspection" What do they really do? [whitall]
Sep 29, 2007 (12:18 pm)
whitall said: Any thoughts on how likely a dealer concession is on a 2004 w/35ooo miles and warranty ran out near the end of July?? How long should this part last?
In my driving experiences water pumps seldom failed under 100,000 miles. Not sure anymore what the manufacturers think about that but a water pump should certainly last a lot longer than 35,000 miles.