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V6-4.3L

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Clutch slave
It is possible that the slave cylinder was not bled out properly prior to installing it. I beleive that slave cylinders are required to be bench bled similar to a master cylinder on the brake system. If this was not...
Question
Truck will rank but no start. Back fires through intake
With the information that you have provided, it sounds to me like the distributor may have been installed 180 degrees out of rotation. If the engine is turning over so easy that it sounds like there are no plugs in...
Question
Turns over but won't start.. 2001 Chevrolet Blazer
Hello - your symptoms and diagnostic efforts still make me suspect that there isn't adequate fuel pressure when you first try to crank it. The fact that it sometimes starts on the second effort reinforces this. If the fuel check...
Question
Is the wheel bearing and rotor made all together? How do I get the rotor off?
Hello, thank you for writing in. False, the rotor and the wheel bearing are two separate components. The rotor just becomes incredibly hot and dirty fusing it into place. If you have a lot of dust, snow, or rain in...
Question
Number 4 fuse keeps blowing.
A little further diagnosis will be required to find out what component along the circuit powered by this fuse keep blowing it and causing the other issues. Things like a component with an internal short or corrosion causing a shorted...
Question
06 Silverado 4.3 won't start after a battery reacement, I have good spark to
Hi there. It really depends on whether or not you've had starting issues before you replaced your battery as to where to begin your diagnosis. However, due to the fact that you have a newer vehicle, it is likely that...
Question
Hey luis my cars fuel meter always says its full and i wanted to know how much would it be to fix this problem?
Hi...the cost will vary quite a bit because the underlying fault could range from something as simple as a high resistance electrical connection in the fuel tank sending unit circuit to a dash gauge failure or a sending unit failure....
Question
i have a 1998 chevy blazer,2bwheeldrive,4.3engine. put a new fuel pump in it. but very hard to crank,spraygasinbreather,it cranks.
Make sure the gas in the tank is not old or contaminated. Although the fuel pump is new, if you have a no start situation, you should still verify the actual fuel pressure as well as injector operation. On cold...
Question
my 2001 chevy express overheating,start leak coolant,vent back to mechanik who replace radiator 3 mon agoy,been told fan cluch nat
It is entirely possible the fan clutch has failed. When this happens, the fan will not pull enough air through the radiator and cause the engine to run hot. Generally there are two types of fan clutch designs. One is...
Question
2001 Chevy Blazer distributor install.. it is at top dead center and the rotor lines up with the 6 but is not seated all the way.
If you are using the marks on the harmonic balancer to find TDC, occasionally the balancer will have shifted (the rubber bond breaks) causing the timing mark to be some degrees off. Consequently, the crankshaft is not really at TDC...
Question
I have an engine knock and my oil pressure guage is reading high, then stops shortly after starting to drive.
Hello, You may want to inspect your oil pump to see if it may not be causing the problem. If it is not pumping or circulating oil properly, it may also cause this type of increase in oil pressure that...
Question
99 GMC Sonoma carbeurated or fuel injected
Hi There, The 1999 GMC Sonoma 4.3L V6 motor is a fuel injected motor that came with what is called a Central Sequential Fuel Injection (CSFI) system. In this application, there is one main fuel injector (called a MAXI injector)...
Question
It has a new fuel pump regulator and filter but not getting gas to the throttle body
The best thing to do is measure the fuel pressure on the fuel rail (the fuel injectors are plugged into the fuel rail). There should be a port on the fuel rail for this purpose. There is normally pressure on...
Question
Does a 99 GMC Sonoma have an electric fuel pump or a mechanical
Hello, The 1999 GMC Sonoma should have an electrical fuel pump. You should be able to hear the fuel pump come on when you turn the key to the "on" position during it's priming phase prior to starting the engine....
Question
How much do I charge to replace fuel pump
Hi there. Unfortunately, it would not be very responsible or professional for us to tell you how to bill one of your customers for this type of repair. You might want to consult with local mechanics in your area to...
Question
Where are the fuses for a 2005 Astro van
Hi there. The fuse box on a 2005 Chevrolet Astro van is located under the hood, near the back of the engine, on the driver side. It's contained inside a "black box" that has a few clips on the box...
Question
I am having an issue with my 2014 Silverado with my interior lights flashing when I step on the brake or use my turn signal to tur
First, the basics. Have any bulbs on the vehicle been changed recently? If so, make certain they are the correct bulbs for the application. Sometimes incorrect bulbs can back-feed power to unrelated systems. Also, have LED bulbs been installed anywhere...
Question
I have a brake fluid leak - it is the main brake line. Right by the gas tank. 2005 GMC Jimmy
Hi there - the brake line must either be replaced with a new GMC part, or repaired, depending on how the brake line was damaged. Unfortunately, this is not a service YourMechanic offers at this time. Thanks for thinking of...
Question
Gmc jimmy started sounding like a go kart even louder upon accelerating.
Hello, thank you for writing in. The increase in engine noise is very likely due to an exhaust leak. As with my own personal S10 at this age, the exhaust manifold gaskets are the first to go. You may also...
Question
I am looking for a long-lasting and reliable oil pump.
The best parts you can buy for the vehicle are original equipment parts that were designed to be used from the factory. General Motors vehicles mainly used ACDelco and if you cannot find any at the parts stores, you can...

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