1988 chevy 1500 after timing is set and the tan wire is pluged back in, and the ces is cleared the truck will not idle

SOURCE: 1997 Chevrolet Silverado 1500 5.7 vortechTruck

Hello Joey325,
Look under the hood on the fire wall behind the engine there is a black cover with 3 tall black what look like nuts. remove them and you will see a relay center, now there should be a brown wire marked timing may be not marked but pretty sure its brown just unplug it and go from there. I sure hopes that gets you going and thanks for using
Fixya Bear001

SOURCE: 98 chevy 1500 4.3L vortec misfire problem

These have a real problem with the distributor caps, i would try that

Marvin

• 85242 Answers
• Posted on Mar 12, 2009

SOURCE: spark plug gap chevrolet 1988 1500 v8 5.7 litre

GAP=0.035" source: rockauto.com

SOURCE: fuel pump wiring diagram 1988 chevy truck

I personally have 1988 GMC truck and had to replace the fuel pump. I found all the info including wiring diagram in a haynes repair manual. These can be purchased in most automotive parts stores. Something I found interesting is that the fuel pump's operation works through the oil pressure switch, located by the distributor screwed into the engine block. If this switch is stuck or sticking it will affect the fuel pump. Replaced a good fuel pump for nothing! The truck had sit up for awhile and the ground wire connections had to be cleaned as well.

ZJ Limited

• 17989 Answers
• Posted on Oct 29, 2010

SOURCE: firing order 1988 chevy 350 my kid changed wires

1988 Chevrolet K 1500 P/U 5.0 liter V-8 VIN "H"



Hope helps.

Testimonial: "thanks"