20 Most Recent 2001 GMC Sonoma Extended Cab - Page 3 Questions & Answers

Make sure the engine grounds are good, very important on these trucks. Also check the wires and connection leading to the 2-pin coolant temperature sensor. If there is no damage or corrosion there, then replace the sensor. They are cheap, and quite often fail.

If this has the flat style cap replace it and rotor they are known for cross shorting . Be careful the cap screws down in to plastic base on distributor most come with new screws with thread lock so over tightening is not needed.

Check Thermostat.

Check power in and out of dimmer switch.

When an engine overheats, they should be shut off immediatly when any warning lights come on, or the temp. gauge reads extremly high. At this point, under extreme heat, your valves will heat up, get soft and bend. Your pistons will melt holes through them and your rings will break. Depending on how long the engine was ran in an overheated condition, your might have an engine with NO OR LOW COMPRESSION.

I would disconnect the battery for a few min then hook it back up to see if it resets itself. if not you have bad cell in the battery and needs to be replaced. good luck

you may have crossed the wires. on the read wire some were but if your pump is in the tank then you have put the wires in the way of the gauge sensor easy thing to do when putting the top back on. just take the top back off and move the wires to the oher side wile holding the top and putting it back on.

check the fuel filter then the fuel pump and the the sensor under the disturiboter cap

The things that you need to do are: 1. Drop the gas tank, this is not easy and it is dangerous. Make sure that it is empty and that there are no sources of ignition around. You need to unhook lines that connect to it that are both fuel and electric. The big lines to the filler neck are hard to unhook and when you are done you should seal them with permatex. 2. The battery draining issue requires that you use an amp meter on the battery in series with the cable. Then you start pulling fuses to see what makes the reading drop. Make sure that you have a meter that will read amperage and not milliamps or you will blow out the meter.

pull your valve cover off and check and see if your rocker arms r operating correctly while its running if u replaced all what u said it sound like u have a cam shaft problem upossibly might have cam lobes wipped out