chevy tahoe 94, ignition problem?

Question

i have a 94 tahoe, and recently SOMETIMES i can't start the engine. lights, radio works, but ignition nothing, any idea?. the alarm was checked and they said is fine. a mechanic said is the key (is not reading it ?), so he put w40 and works 2-3 times but later no more. ANY IDEA??
ps. i changed the fuel pump not too long ago.

Answer 1

Chevys had an ignition switch problem then not the key but electrical switch cost about $100 plus installation.

Answer 2

check for corrosion on the battery terminals and loose connections many many times small problems like this cause people to spend unnessary money on parts. ect. the starter draws alot of power more than almost anything else on the vehicle the battery terminals must be very clean and tight. make sure the starter bolts are tight as many starters don't use a ground wire but simply use the contact of the starter to the engine as a ground. a loose connection would cause the starter to work when it has a good connection and not when it don't. If all of that checks out test or replace the starter relay and if that don't fix it maybe the starter is bad. IDK but I hope it's something simple and cheap. Good Luck.

Answer 3

Does the motor turn over or does it crank and not start up? 2 separate subjects. If it does not turn over the solenoid must be undesirable on the starter or the battery has a bad floor or the terminals must be loose. If it spins over i've got have been given a barn backyard approach of telling in case your getting spark on your plugs. making use of an inductive timing lite (sears) camp black cord to a sparkling floor The purple clamp to a warm helpful source. Clamp the great induction clamp around any spark cord. conserving the timing lite on your lap in the back of the guidance wheel squeeze the set off on the gentle and attempt to start your Tahoe. you're able to desire to verify flashing gentle interior the lens of the lite on the instant. If there's no flashing lite the module could be undesirable. in case you have a delicate flash have your gas rigidity examine. The injection could choose artwork.

Answer 4

I have the same vehicle. Gives me nothing but problems. Just broke down again this past saturday, had to tow it home. I'm not wasting any more money on this junk. You also should rethink your choice of vehicle. It will nickel and dime you to the point of homelessness if you let it.

Answer 5

Does it click at all when you turn the key or is there no sound what so ever? If so it is probably your starter. what is w40?

Answer 6

could be a battery cable cap and rotor a sensor battery alternator plugs plug wires yeah thats all i can think of right now