20 Most Recent 1997 Chevrolet Express Questions & Answers

Question edited for clarity. Question moved to model category. Full wiring schematics are usually only available from paid sites like www.alldata.com or in workshop manuals. You can take a one month subscription. Partial wiring diagrams are normally free. https://www.google.com/search?q=1997+chevy+express+3500+van+5.7+wiring+diagram ..

Question edited heavily for clarity. Question moved to model category. After it was sitting, did the battery go flat, or did you have to remove it to charge it? Immobilizer and anti-theft system reset needed? Other help in the link https://www.google.com/search?q=1997+Chevy+Express+1500+fuel+pump+issues ..

for help u will find a lot of wiring diagrams and circuit diagrams help books and stuff like this at reliable-store the girl in the chat box can help u instantly... im a frequent buyer there since Im a mechanic so take help from there

No spark to the coil or is it no spark from the coil? First verify that you have 12 volts to the coil when you turn ignition switch on if not you will never have spark from the coil going to the plugs. If you do have 12 volts to the coil and still no spark you have a bad coil. To see if the coil is firing, unplug a spark plug wire from it's plug and hold it to a chasis ground while attempting to start the vehicle. There should be a strong spark and popping sound. Remember to wear leather glove or thick work glove if holding the wire by hand to avoid shock. If there is a strong spark then coil is good.

there is not resistor, you should have 3 relays on electrical panel in rear on the left side by the blower, each relay control the speed of the motor

is the battery fully charged? will it jump start/ if the battery is good and it wont jump start. It sounds like a bad starter, sometimes on a GM auto you can tap the starter housing with a hammer and get it to start if this works you will need to get a new starter. Note tap the starter dont beat on it.

One last thing is a module in the distributer.

Check out the idle air control and the throttle position sensor/map/mass air flow sensor,,best to run scan to pin point the problem,

it pushes out! givee it a brisk tap okkbut not too hard!

HelloThe engine and transmission in this cars drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant teperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL THE DIAGNOSIS & TESTING IS COMPLETED.