1999 Chevrolet C1500 - Answered Questions & Fixed issues


If diesel, you have bad compression. time for an overhaul. If gas, and it's cold its just like your breath. Moisture condensation in the air.

1999 Chevrolet... | Answered on Mar 09, 2015 | 50 views


Junk yard parts are way cheaper that dealer prices.

1999 Chevrolet... | Answered on Dec 06, 2014 | 98 views


You will need to take the dashboard apart and then take all of the heating duct off. Unhook the 2 hoses to the engine cooling system in the engine bay. Then take the duct apart to take the heater core out . After all that just take everything back together. It,s a big job for sure!!!

1999 Chevrolet... | Answered on Jun 11, 2014 | 131 views


intake or exhaust?

1999 Chevrolet... | Answered on Nov 04, 2013 | 24 views


Misfires must be diagnosed. As you can see, randomly changing parts in an attempt to diagnose the problem can be vert COSTLY. Besides all the parts that you have allready replaced, there could be a problem with the fuel injectors, there could be cylinder compression problems caused by a number of possible causes including bent/burnt valves, broken valve springs, or a head gasket blown between cylinders. There could be timing problems due to erratic knock sensor input. Fuel shutoff due to throttle position sensor "dropout". "Random" misfires (which is what a code P0300 code is) can even be caused by something as crazy as a vacuum brake booster leaking and creating a large vacuum leak....the list goes on and on....

It is easiest and most cost effective way to diagnose this type of problem is by using a scan tool and looking at all of the engine data and/or taking a "snap-shot" of the data when the problem is occuring. This way, you can tell which parts of the engine control system are being affected so those areas can be inspected for possible failures. The first step is to isolate the causing SYSTEM. So far, you have replaced parts for the fuel system, the ignition system and the EGR system....

1999 Chevrolet... | Answered on Nov 12, 2011 | 365 views


Your problem shows as a problem with a 1999 Chevrolet C1500. Then you describe the problem as not coming out of 4-wheel Low. If your Truch HAS 4 wheel drive, it is a "K" series truck, not a "C" series truck. K1500? (Minor detail, but some people don't know the difference and can give you some really goofy advise if they try to look it up the way it is listed.)

Anyway, I have to ask this: Did you actually scan your transfer case module or did you scan with a generic OBD code reader? It should be noted here that MOST OBD code readers CANNOT access information from the transfer case or body control modules. They can only access the "GENERIC" side of the engine control computer (or PCM). They also cannot access "vehicle specific" information from ANY modules including the PCM.

With this type of problem, you really need a full access scanner that can read data from all of the modules. That is the only way to check and see if the computer is getting the signals from the control switches to change your drive mode. If the computer is not receiving the signals, then there is a problem with your selector switch or the wiring between the switch and the computer. If the computer IS getting the signal, then there is a problem either with your shift actuator motor assembly or the wiring between the computer and the shift actuator.

Reading the data will also verify the range that the actuator is reporting to the computer. Just because the motor runs, does not mean the actuator is functioning properly. It COULD be reporting to the computer that it is in 2-wheel High when it is actually stuck in 4-wheel Low. This is where comparing computer data to functional testing comes in.

1999 Chevrolet... | Answered on Sep 17, 2011 | 121 views


CHECK WITH THE CHEVROLET DEALERSHIP ASP

1999 Chevrolet... | Answered on Aug 30, 2011 | 170 views


give it a shot of starting fluid and if it fires it`s fuel if not i`ts spark or something else good luck this will isalate the problem

1999 Chevrolet... | Answered on Aug 24, 2011 | 51 views


Hi, the sending unit on your fuel pump sends a variable ground signal to the dash guage. I believe there may be a fuse for it, check your fuse panels. If not, you can poke a thin pin through the wire coming from the sending unit at the fuel pump connection and run it to ground. The guage should go to the full mark. If not, the problem lies in the wiring between the sending unit and the dash. If it does go to full, your sending unit is defective. Mike

1999 Chevrolet... | Answered on Jun 14, 2011 | 104 views


according to the Haynes manual first pass is 22 fp on all of the bolts. then on the next pass small bolts go 45 degrees medium bolts go 55 degrees long bolts go 65 degrees. and that is it

1999 Chevrolet... | Answered on Mar 13, 2011 | 155 views


The computer monitors just about everything electrical on the vehicle.The part you are refering to is not a neutral safety switch , its called a mode switch,It controls what range the vehicle will crank, the reverse lights, the indicator lights in the cluster, and tells the pcm where the gear lever is so it can produce the proper solenoid commands for that range.Have you checked codes?The adjustment precedure is critcal so would recomend not just changing parts or guessing.

1999 Chevrolet... | Answered on Feb 15, 2011 | 55 views


reset the codes with an OBDII to default then run it..then see if codes come back

1999 Chevrolet... | Answered on Jan 25, 2011 | 79 views


do a fule pressure test, and check the signal from the tps, it may have a bad signal, best to get installed a real time scanner to check all the sensors and actuators

1999 Chevrolet... | Answered on Oct 24, 2010 | 202 views


It's a big issue, it will leak vacuum, water, or both. You might get lucky that it snapped off aboe the head, if so, remove the intake, and go to Sears, they have the new bolt removing sockets, I have one and it works great. Auto Zone might have a set for around $35.00, this is what I bought for any emergency. If it's below the head surface, you can chance it or take the head to a machine shop to get the screw eased out. If your good with a hand drill you might get a hole in the bolt and ease it out yourself, those bolts are pretty hard to drill while in the vehicle.

1999 Chevrolet... | Answered on Oct 19, 2010 | 32 views


you may have a bad coils or coil boots in those cylinders, try switching the coils to a good cylinder and see if the codes change to the other cylinders, if they change then replace the coils, the computer see it drawing more cuurent so it thinks its the plug because its not misfiring or completly grounding out.

1999 Chevrolet... | Answered on Aug 20, 2010 | 347 views


You probably have a caliper that is sticking.I have had this happen to me on a few occasions after doing a rear brake job.Make sure and check the ABS code to see if it is related or not.Also check over your work very carefully to make sure you did everything right.Let me know what you find.Good luck.

1999 Chevrolet... | Answered on Jun 30, 2010 | 78 views


You should check the CRANK SENSOR & OIL PRESSURE SWITCH (the oil pressure switch is located around the oil filter has one plug with 2 wires, it takes a SPECIAL SOCKET took me about 10 min. to do and had never done one before) Crank Sensor you have to remove everything that is in the way of getting the harmonic balancer off, to do that you will need a H/B PULLER, after that the sending unit is right behind that should be the only thing there with wires going to it

1999 Chevrolet... | Answered on Jun 24, 2010 | 126 views

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