20 Most Recent
1988 Chevrolet C3500 Questions & Answers
Idal adjustment
The idle is computer controlled and not adjustable. You may have a intake manifold vacuum leak that is the cause of the high idle.
88 chevy relay switches
How do you know it's actually started for gas? Are you sure it's actually starved for gas, and not just a bad o2 sensor? Are you having issues with it running properly?When is it running lean? WOT, idle, always? It's possible you have bad diaphrams and your secondaries aren't opening up, but hard to say without an actual description of the problem.
1988 chevrolet 350hp when you start off it cut off
Do a major tune up,with air filter and fuel filter,cap and rotor ,and spark plugs,and maybe a pcv valve.This is most likely the problem,if not,then the distributor,or slack in the timing chain ,or ,a valve adjustment would be the cause,if this was helpful,please rate,thank you.
I need a diagram for a 1989 chevy p.u 3500 for a
Your belt routing should be on a diagram on either the fan shroud, or the core support. However, this routing depends on whether or not your truck is equipped with a/c. Either way a belt routing diagram should not be difficult to locate.
No feul to moter
Usally the pump, which is in the fuel tank. Check the fuse and relay.
When I disconect the vaccume line to the map
Have you tried to reset the computer,by disconnecting the negative cable on the battery?How about the speedo,is it reading correct?Is the truck burning rich?Disconnect the battery cable for about 25 seconds to rest the computer.Also have the fuel pump check to find out the fuel pressure.One more thing.Pull the egr valve,and look at it to see if it is closing off.It normally is closed with no vacuum.If it is stuck,it will cause the symptoms you are describing.I hope this was helpful,if so,please let us know,thank,you.
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