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fuel pump and pre-pump questions 700 1992

Here's my story:

I was moving with my '92 740 turbo across the country, all loaded with stuff. In the mountains of Idaho on a hot day it died, sputtered as if fuel-starved and then wouldn't take fuel at all and wouldn't start up again. Got it towed to a tiny town, assumed my fuel pump had died since it had been making that fuel-pump buzzing noise for months previously. Next day it started. So I figured it was the pre-pump, drove at night when it was cooler and kept the tank above half. Made it the 1200 miles to my destination.

I'm not one of you fix-the-hard-stuff-yourself folks I admire so much, so I took it to my volvo mechanic. He said that we really should replace both the pre-pump and the main pump right away, and gave me some story about how if i don't it might die and send metal into the engine or something and cost me a billion dollars. He'd like to charge me about a thousand bucks for the job. Is this right? The car is running ok now, and I don't plan any big trips in the future -- it's a get-groceries and go-out-to-dinner car now, I don't even need it to get to work. Plus my radiator is leaking coolant so that must be replaced immediately and will cost a lot of money. I'm low on cash and would like to wait on anything I can wait on, and anyway I feel like my mechanic is a bit too pricey. Couldn't I wait until it dies again? Or just replace the pre-pump? Is there any actual risk involved in waiting?

thanks for any advice you might offer another idiot who knows too little about his own damn car. i'm learning...








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fuel pump and pre-pump questions 700 1992

Change mechanics,this guy is trying to take you for a ride.








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fuel pump and pre-pump questions 700 1992

Your problem sounds more like a radio suppression relay or crank position sensor problem than a fuel pump problem; both are known to be intermittant and temperature sensitive. RTFAQ.
Your mech does sound a little pricey; there's ~$500 parts and 2 hrs. labor involved in changing both pumps. Pump metal has to go through the filter, which is VERY unlikely, to get to the engine.
The greatest risk in waiting is in your radiator, failure of which can destroy the engine; they're only a couple hundred bucks, and are easy to change.
--
Jim McDonald







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