i have a 2002 rendezvous. it cranks but doesn't start.
What is your question?
When i try to crank it it tries but doesnt crank. It only does this sometimes. The newest thing that happened i hooked my scan tool up and it gave a p0405 code(EGR low voltage) I did the test where you take the egr off and crank the car to see if the egr passages are clogged. My results are questionable because the battery keeps going dead and I have to keep my booster box on the battery. When I did crank it, the RPM'S went to 2 1/2 and stayed there. it didn't stall out, and it didn't seem to me to be idling high. That just had me to think that the intake manifold pluenum was clogged, and needed to be cleaned out. The car's battery has been dead so a normal idle unknown. From my experience, 2 1/2 RPM's seems normal. I don't have a regular running buick rendezvous to compare start-up idle. If anyone has any ideas, give me a shout. thanks.
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Is check engine light on? If so need to get codes. Auto zone will do this for free. Then post codes back on here. Could be any number of things. Check fuel pressure at fuel rail. This will insure that fuel pump is putting out enough pressure. Could also be dirty/faulty idle air control valve or throttle plate, stuck open pcv valve, stuck open egr valve or possibly a vacuum leak.
