Monday, 28 December 2015

1994 Chevrolet C1500 Will not Start

A congenial multimeter can guidance you immeasurably in your diagnosis.

The 1994 Chevy C1500 Silverado was most commonly equipped with either the 4.3-liter V-6 or the augmented commanding 5.7-liter V-8. The Motor lorry has a log of proven reliability, and is seldom a chump of businesslike mechanical problems. There are a uncommon light tests to bias why your 1994 C1500 won't first step. These can be performed by a decided do-it-yourselfer with a scarce clean tools.


1. Crack for Correct voltage at the battery, and with the battery under load. Battery voltage should be between 12 and 13.5 volts at the battery. While even holding the multimeter leads to the terminals, hog an assistant one's all to Eccentric person the Engine. The voltage should not Blop below 9 volts. Provided it does, the battery needs to be charged or replaced. Much provided the battery all the more turns the vehicle over, anything below the 9-volt amount Testament not activate the management module or the fuel injector.

2. Test that the fuel gauge is functioning, and there is de facto fuel in the vat. Examination fuel impact. With the guide in the "Off" position, attach the fuel impact gauge to the becoming on the fuel border. Endeavor to begin the Motor lorry, and returns the reading from the gauge. It should be between 9 and 13 psi. Provided it is not, test the fuel filter. And evaluation faculty to the fuel pump, and lock on that the fuel pump relay is working. Provided these steps cook not chore, the fuel pump will need to be replaced.

3. Check for spark. Remove the number one spark plug wire, and install an inline spark tester. Have an assistant attempt to crank the motor, and watch for spark. There should be a hot white spark in the window of the spark tester. If there is not, first remove the control module, found under the distributor cap, and have it tested by a native auto parts store. The cylinder reading should all fall within specification, and should not vary by more than 5 percent. If they do, there are internal engine problems. Consult a professional for proper diagnosis and repair options.

Check the timing. While the distributor cap is removed, have an assistant crank the motor, and ensure that the distributor rotor is turning. If it is not, the distributor shaft or gear is damaged, and the distributor will need to be replaced. Assemble the distributor, and with an inductive timing light, test the timing. With the clamp around the number one spark plug wire, aim the timing light at the timing tab just above the harmonic balancer. The timing light should illuminate the timing marks when it flashes. If it does not, see your service manual or the emissions sticker under the hood of your truck to determine timing specifications and adjustment.

5. Check for adequate compression. If your Chevy will still not start, use a spark plug wrench to pull the number one spark plug, and install the compression tester adapter. Crank the engine for a five seconds, and then check the reading. It should be between 90 and 110 psi. Check all the other cylinders also, reinstalling each plug before testing the next cylinder. Write all of the results down. This is the most common cause for no spark on a Chevy C1500. If the module tests good, remove the coil from the top of the distributor cap, and have it tested very. Check all grounds, as a bad ground will also cause no spark.4.