Last post on Oct 17, 2006 at 8:34 PM
You are in the Chevrolet Silverado & GMC Sierra
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, Truck
#921 of 1497 A/C and heat won't blow
Dec 14, 2005 (8:13 am)
We have a 98 Silverado. Back in the summer, the A/C blower began working intermittently. Sometimes, the fan/blower would work at all settings. Other times, it would only work on high. Sometimes, it wouldn't work at all at any setting and then would kick in after we drove for awhile. The same thing is happening with the heater now, which had been working fine all fall. After the truck is warmed up, it radiates heat, but the blower isn't forcing any kind of air out of the vents at any setting.
#922 of 1497 Re: A/C and heat won't blow [cchild03]
Dec 14, 2005 (9:18 am)
It might be the blower motor resistor. I have a 2000 Silv and my blower began only working on level 3 & higher. There is a plug in resistor in the motor housing underneath the dash on the passenger side. It was very easy to change and only costs about $15.00 for the part. Not sure with your 98 if it's exactly the same but my guess is that it's at least similar. The resistor solved my problem and now the blower works on all settings.
#923 of 1497 Re: Manual trans noise [p100]
Dec 14, 2005 (5:33 pm)
The 5 speed isn't offered with a 5.3 because it can't handle the torque. The NV3500 is rated for 300 ft-lb (the 5.3 produces 335 and the 4.8 produces 295). Supercharging a 4.8L/NV3500 seems like a bad idea that would definitely void the transmission warranty. Maybe they installed an upgraded transmission (NV4500?), hopefully so.
It's unfortunate that GM uses a transmission unfit for the power or CGVW of a well-equipped truck. Let's hope they address this in the 2007 redesign.
It's clear why the weak NV3500 is only available on small-motor, regular cab trucks, but (somewhat off-topic) Can someone please explain why they don't offer a plow-prep package on 1/2 ton, extended cab models?
#924 of 1497 Hard shift
Dec 14, 2005 (6:37 pm)
2002 Silverado 1500, 4x4, auto transmission, 4.8L engine.
Most of the time the shift from low to second is very hard. Very seldom the shift is so smooth you almost can't feel it. Harder acceleration will usually make the shift smoother but no guarantee. Hauling a load will usually give a smoother shift. I've tried for 40,000 miles to learn the "trick" for getting a smooth shift but can't figure it out. As usual the dealer service department does not have a clue. Anybody got any ideas on how to make this transmission shift smoothly?
#925 of 1497 Re: speedometer (sometimes works and others it don't) [ssb]
Dec 15, 2005 (3:09 am)
Once again, had to have my $40K 2004 duramax in the shop again yesterday! Less than 2 years old, 40K miles & now the insturment cluster is needing replaced! I don't understand why they are having so many problems with this?? They told me I can pay an additional $1,800 to extend my warranty...or just keep paying out of pocket for the problems with my high $ vehicle. This is Crazy!!
#926 of 1497 Climate Control Fan Only works on #5 setting
Dec 16, 2005 (9:32 am)
I have a 2004 Silverado EXT 5.3 liter Z71. It has an analog dual climate control setup. The fan selector switch currently only works on #5 setting(highest). Over the past few weeks it has gone from working fine (0-5 settings all have different fan speeds) to it's current condition. It has gone from all selections working to only 3,4,5 working to only 4,5 working to now only 5 working... Do you think it is the switch, or is it something else??
#927 of 1497 95 Silverado starting problems...... by jesse_224
Dec 16, 2005 (11:26 am)
Jump start yourself!
You can check the negative battery connection - by taking a jumper cable and placing it on the negative battery terminal - then attach the other end to the engine block - if the truck starts then you know the negative cable has a problem - could be the connection at the battery, or to the engine - or maybe the whole cable could be bad.
Normally when you jump start an engine you hook the positive battery post on both vehicles together with the first cable - then hook the second cable to the negative batter terminal on the car that is running - and then hook the other end to the car engine of then vehicle that will not start on its own.
If this is how you hooked the jumpers up and the engine started with no problem - then I think your positive cable must be good.
#928 of 1497 Re: #1 of 2 Chev Silverado 2003 Transmission Whine by cryscross Aug 08, 2003 [cryscross]
Dec 16, 2005 (12:24 pm)
I have somewhat of a similar problem with my 04 Silverado. My engine is a 4.3 and has a rattle at low rpms. The rattle stops at higher rpms. The dealership told me that it needed some "flex pipe" but it did not solve the problem. They now believe it is in the motor. I take it back to dealership on Monday.
#929 of 1497 similar problem
Dec 16, 2005 (12:24 pm)
#930 of 1497 Re: Climate Control Fan Only works on #5 setting [mattbilodeau]
Dec 16, 2005 (12:43 pm)
A classic symptom of a defective blower motor resistor. Also, refer to post # 922 for instructions how to replace it. The resistor is supposedly only $ 15.