20 Most Recent 1993 Chevrolet K1500 - Page 6 Questions & Answers

run fault codes and look for a TCM fault. have a pressure test done on the box to determine internal problems. Check band/clutch adjustments

Check the multi-wire connector to the CDM unit to ensure it's mated securely. If it is, the likely problem is the power amplifiers mounted to the heat sink on the back of the CDM unit...but it could also be the tuner preamp section, the IF section or others. If there is absolutely no sound - no hum, no static, etc., I'd look at the power amplifiers. There are several sources of NOS and remanufactured CDM units on eBay and from other online retailers. Without a schematic of the CDM unit, you'd just be shooting in the dark. Replace it and call it a day. Good luck.

Not an easy way. But you can remove it and check for solder cracks and bad or broken components using a magnifying glass.

check the linkage if linkage is ok check fluid if fluid is ok replace trans

The rpm gauge would not be sending a signal to the ECM as it only reads the rpm's. The sensor that reads the rpms and from that information the ECM makes the necessary adjustments to the engine management. Have the fault codes read and look for a faulty cam/crank sensor.

What it sounds like is the fuel pressure regulator has gonebad. It is located on the intake manifold inline with the fuelline going to the throttle body. This little regulator has a singlevacuum line going to it. Most parts stores carry them in stock.I hope this has helped.

The fuse box is located below the steering wheel to the right. There is a cover, just pop it out and you should see the fuse box.

Have you checked the dimmer switch ?

The switch/circuit board that controls the wipers probably needs to be replaced. They're available at Advance Auto or other parts stores for about $25.

If you found the problem, what was it? If it still haunts you, find a wiring diagram and I'll bet you can figure it out. There's probably other parts. Isn't there a timer switch involved? Am I correct in thinking the pulse board is the module at the wiper motor? It sure sounds switch related. You might need to examine closely the connectors for the switch....or did you already have it fixed?

Chances are that the vehicle speed sensor has failed. This would cause all the symptoms that you mention. If the computer doesn't seen any speed, then it has no reason to shift the transmission up and out of first gear. And of course, there would be no speed shown on the speedometer.

did you check for power with a test light,
there are some fuseable,links mounted on the fire wall on the passenger side under the hood,but it sounds like the headlight switch needs replaced

Which fuse ? And is it an automatic trans ?