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Old 03-30-2002, 02:04 AM   #4 (permalink)
Richard Cranium
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I can't comment on the exact vehicle but I'll give some general suggestions.

More questions, does the vehicle run "perfectly" when Hot ?

If it looses power on very slight hills, and stumbles on start you could have a bad EGR valve. The spring inside gets weak and allows the valve to open early and open during start.

You can unplug the EGR valve's vacuum hose to test.

other things

A leak in the intake manifold or any vacuum lines or under the throttle body can cause similar running.

If you have a propane torch you can check for intake/vacuum leaks yourself.

DO NOT LIGHT THE TORCH, simply open the valve slightly and allow the propane to float around the suspect areas while the engine idles.

Only do this for a minute or so that you don't allow the propane to build up and possibly ignite on a leaking spark plug wire.. Also only do this procedure outside.

A flammable penetrating oil will work also, I don't like to use it cause it can make intake leaks worse by washing out carbon buildup making repair time more immediate.

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