Perfect symptoms of a vacuum leak. Eric 86-VW4x4 vw4x4@fyi.net 72-240z Pittsburgh, PA USA 1936-Chrysler
On Wed, 25 Aug 1999, Christopher Arnold wrote: > After a history of engine temps hovering at the bottom of the LED w/ temps > in the 90's, our '87 GL has decided to slowly heat up. Coolant tanks are > full and stable, belts are in good shape (recently replaced) and we're not > running the A/C. What I have noticed lust recently (about the same at the > higher temps) is a heavy rattle which seems to be originating at the > muffler (which is rusty and sounded semi-perforated before). The rattle > goes away when the engine is a little above idle. In addition as the > engine heats (never overheated *yet*) up engine "power" & response drops > significantly. > My thought...The muffler is coming apart blocking the exaust flow. In turn > backpressure on the system keeping the cylinders from being evacuated > completely and progressively raising engine temperatures. Sound possible? > My other option is that the H2O pump is failing (because of a new belt??). > > Thanks, Chris A. > '87 Vanagon GL > '87 Honda Accord (201k) > '86 Honda Civic Si (236k) > |
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