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Old 06-17-2011, 08:56 AM   #1 (permalink)
mhh
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Hi-Press Fuel Pump covered by powertrain warranty?

I'm having an issue with my dealer as to whether the hi-press. fuel pump is covered by the powertrain warranty.('07 GXP, 47,000mi) I've seen in previous posts where someone has gotten it done under warranty. Has anyone else had success with this? If so, does anyone know the code under which it was covered? Virtually every other piece in the fuel system is covered. How can a MECHANICAL piece mounted on the engine (without which the engine can't run) not be considered part of the powertrain? Thanks, Mark
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Old 06-17-2011, 04:35 PM   #2 (permalink)
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I'm having an issue with my dealer as to whether the hi-press. fuel pump is covered by the powertrain warranty.('07 GXP, 47,000mi) I've seen in previous posts where someone has gotten it done under warranty. Has anyone else had success with this? If so, does anyone know the code under which it was covered? Virtually every other piece in the fuel system is covered. How can a MECHANICAL piece mounted on the engine (without which the engine can't run) not be considered part of the powertrain? Thanks, Mark
IIRC the fuel pump is in the fuel tank and is covered under the powertran warranty.

This changed for 2010 models on though and they think it applies to you, it does not!
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Old 06-17-2011, 06:11 PM   #3 (permalink)
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IIRC the fuel pump is in the fuel tank and is covered under the powertran warranty.

This changed for 2010 models on though and they think it applies to you, it does not!
There are two fuel pumps in the GXP models- the high pressure pump which is driven by the intake cam, and the intank pump which is electric. The intank pump feeds the high pressure pump.
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Old 06-17-2011, 06:44 PM   #4 (permalink)
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There are two fuel pumps in the GXP models- the high pressure pump which is driven by the intake cam, and the intank pump which is electric. The intank pump feeds the high pressure pump.
Oops...forgot the GXP part, sorry..but I believe it's still covered under the powertran warranty as part of the fuel system.

Hmmmm..seems I may be incorrect according to this information http://www.gminsidenews.com/forums/f...ty-info-46211/

May want to call Customer Service and get a definitive answer.
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Old 06-17-2011, 10:36 PM   #5 (permalink)
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Oops...forgot the GXP part, sorry..but I believe it's still covered under the powertran warranty as part of the fuel system.

Hmmmm..seems I may be incorrect according to this information 2007 GM 5/100 Warranty info - GM Inside News Forum

May want to call Customer Service and get a definitive answer.
Called Customer Service; doesn't look good, but I'm still fighting! There may be some leeway given to me based on the low mileage (their words) and the fact that the in-tank fuel pump failed the bleed down test and never tripped a sensor. Might have contributed to the hi-press. pump going bad, also the cat. converter (ALL OF THIS AT ONCE!!) Start again Monday! Thanks for the help; will keep you posted. Mark
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Old 06-20-2011, 11:54 AM   #6 (permalink)
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Still trying to get issue resolved. Now it seems that BOTH pumps are bad. In-tank pump not holding pressure on bleed-down test. My contention is that since that pump is supplying inadequate fuel to the hi-press. pump, that caused it to fail. GM customer service seems to be really trying to help, dealership seems to be the problem. Stay tuned!! Mark
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Old 06-20-2011, 12:12 PM   #7 (permalink)
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...dealership seems to be the problem. Stay tuned!! Mark
Well, "duh", Mark aren't all GM dealers problematic when repairing broken things under warrenty- They have this strange way of "splitting hairs" when it comes to factory warrentees. Good luck, buddy!
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Old 06-20-2011, 12:26 PM   #8 (permalink)
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Well, "duh", Mark aren't all GM dealers problematic when repairing broken things under warrenty- They have this strange way of "splitting hairs" when it comes to factory warrentees. Good luck, buddy!
A little Birdie recently told me why the local service departments seem reluctant to approve warranty repairs. I don't know if this applies to all GM service departments, or just the one she was telling me about. But apparently the Service Department Manager of her dealership is paid an annual bonus, based upon on how FEW warranty repairs were made that year. If this is some kind of nationwide program set up by GM, then this finally explains the issues we have all seen getting warranty work done. It has always amazed me how difficult it sometimes seems with the process. But, if this is true on an industry level, then it all makes sense now.
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Old 06-20-2011, 01:36 PM   #9 (permalink)
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sorry mhh, I've been out of town. I just got your message. I was able to get mine covered under warranty after calling the customer service. I still have the invoice, I just saw it a few weeks ago but I'm still out of town. I'll try to find the authorization number tomorrow.
But I would not drive around just with the low pressure one. I doubt it would damage the low pressure fuel pump, but may damage the high pressure fuel injectors or worse damage engine internals from detonation.
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Old 06-20-2011, 03:17 PM   #10 (permalink)
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Still trying to get issue resolved. Now it seems that BOTH pumps are bad. In-tank pump not holding pressure on bleed-down test. My contention is that since that pump is supplying inadequate fuel to the hi-press. pump, that caused it to fail. GM customer service seems to be really trying to help, dealership seems to be the problem. Stay tuned!! Mark
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Old 06-22-2011, 09:12 AM   #11 (permalink)
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UPDATE: Still fighting the dealership. But I have some help from forum members that might finally convince them that the HI-PRESSURE FUEL PUMP is part of the "ENTIRE PRESSURIZED FUEL SYSTEM"(per GM 5yr 100,00mi warranty). I'll keep you updated on status; hope this finally settles it. On July 30, my wife and I plan on driving to Key West, FL for a few days,(from New Orleans) and I have to restore my wife's confidence in the car. Again, thanks to the members showing concern and offering help. I own a 1980 Factory Kelmark GT (Corvair powered) that I did a ground up on, and the Kelmark forum has always been full of sniping and arguing; here its a positive experience. Keep it up!!! Thanks, Mark
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Old 06-22-2011, 08:54 PM   #12 (permalink)
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UPDATE ON UPDATE!!!! They've come around, SIDI pump is covered under powertrain warranty. Thanks for all the advice and behind the scenes help, (Jason), I pick it up tomorrow/Friday. Couldn't have done it without you. Sincerely, Mark
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Old 06-30-2011, 10:42 AM   #13 (permalink)
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Glad to hear you got it under warranty. I took mine in a few months ago and had it replaced with no issue. Of course they managed to screw up some other stuff I'm still fighting, but the coil and fuel pump they replaced no problem under warranty.
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Old 07-01-2011, 08:13 AM   #14 (permalink)
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A little Birdie recently told me why the local service departments seem reluctant to approve warranty repairs. I don't know if this applies to all GM service departments, or just the one she was telling me about. But apparently the Service Department Manager of her dealership is paid an annual bonus, based upon on how FEW warranty repairs were made that year. If this is some kind of nationwide program set up by GM, then this finally explains the issues we have all seen getting warranty work done. It has always amazed me how difficult it sometimes seems with the process. But, if this is true on an industry level, then it all makes sense now.
Very interesting!!

So the less they help customers with car problems the better off they are? Gee, any manufacturer with an attidude like that might end up going broke. Oh, wait a minute....
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Old 07-11-2011, 04:05 PM   #15 (permalink)
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JET WS6, can you post the instructions on direct wiring for you radar detector?
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