"Terry K." wrote: > > Hey all---- > > Figure this one out--- > > I have been milking a coolant hose leak for 6 mos., it was one of the > two that go along the firewall, down to the metal tubes that go forward > to the radiator---I just loosened the cap on the expansion tank, and the > loss was minimal. > > The Van has always had a hesitation, when leaving from a stop, until I > left the pressure cap loose--and it has ran just ducky----- > > I replaced the hoses yesterday, and now the darn hesitation is > back-----this just can't be----no rhyme, nor reason. > > Mind you, every electrical control component has been replaced within > the last two years, and now that it doesn't have any post nasal drip--it > runs like Ca-Ca--off the line--the juice pedal, has to be stuffed to the > floor, before the van takes off with any sort of semblance of > speed---and even then it's a bow-wow--- > > The oxy sensor light was blinking prior to me repairing the hoses--now > it doesn't.--this alone doesn't sound right---- > > I give---any idea's? I cannot tell from your message what year van you have, but I learned very early on in my 83.5 westy that the coolant temperature/pressure sensor is directly linked to the main computer - if it "thinks" things are too hot it will shut down the engine (or at least reduce performance ) - so reducing the pressure by loosening the cap would have that effect but I don't think it will be good in the long run. you may have built up a large air bubble in the system, introduced by the leaks in the water lines. (or you may have the classic head gasket/water jacket leak as well! :-( Dave Richoux |
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