Question about 1994 Chevrolet Caprice Classic
I would replace the Fuel Filter and Run a Can of B12 Chemtool with a Full tank of Fuel before you start Draining the Fuel out of the Tank.
Posted on Jan 10, 2009
I hope this helps, I have had this problem 1 other time.
The EGR valve you bought was a negative and it calls for a positive. Or visa/ verse. If that is the case, it will not start. There are 2 different EGR's for 1994, CFI & TBI, both are the type of injection and are not interchangable on the EGR valves.
Posted on Jan 14, 2009
SOURCE: rough idle poor acceleration
The EGR Valve is right under the air intake hose, these have a habit of getting jammed by pieces of carbon. You can remove the valve by disconnecting the wiring connector and removing the two bolts holding it on (10mm head) You should see the piece of carbon holding it open.
Good carb and choke cleaner will clean it up, the get a screened gasket to fix this issue once and for all. I cleaned mine about ten times in four years till I got a screened gasket, then no more issues.
Posted on Apr 03, 2009
Sounds like a bad wire connection. Check the connectors for cleanliness and that they are tight and free of corrosion.
Posted on Apr 08, 2010
Testimonial: "Good idea. I intend to replace spark plugs, wires and distributor cap. Car just turned over 100,000 miles. Which wires should I check in addition?"
I had a 96 GMC 1500 with a 5.7 ltr. It would idle rough, especially on start up. After replacing everything under the sun, it turned out the ECM (computer) was shot. I found a used one and plugged it in and it ran fine. I think I paid 50 bucks or so for it. If you know someone with a truck like yours, plug theirs in and see if it fixes it.
Posted on Apr 19, 2010
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