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Re: 5ktq, no power
James Fawcett wrote:
> >Limited info, but here we go !
> Thanks, I was thinking that it might be the temperature sender, or the O2
> sensor, since I am getting much worse mileage lately too. Also, when I
> start the car up, usually after setting a while, I can hear about 10 quiet
> clicks or bumps coming from the rear of the car, maybe the fuel accumulator,
> fuel pump will prolly be bad soon too, since I can really hear her hum
> sometimes. My thoughts are to replace all the temperature senders and the
> thermo-time switch, since I am having trouble starting in the cold too
> (maybe temp-sender or cold start valve). I have 131,000 miles on her and I
> think that all these senders and such could be going bad by now. How much
> would this cost me? I was already planning on replacing the O2 sensor.
> Prolly been a while. Let me know what you think. I really appreciate the
> James Fawcett
> 86 5kTQ
> email@example.com org
> St. Charles, MO USA
I would probably take systematic approach to isolating/resolving the problem:
1.- I would not be too concerned with a "buzzing" gas pump, most are noisy and run
2.- Replace fuel filter and air filter unless recently done.
3.- Run a full tank of a good fuel system cleaner. The listers mention " Techron "
4.- Replace Oxigen sensor if over 40K miles.
5.- If temp gauge ( dashboard) is erratic, replace multifunction sender (also feeds
computer - ECU -).
6.- Run or have someone run a "fuel system pressure test" for pump and accumulator.
7.- Check and clean if necessary the electrical connector to the pressure regulator.
8.- I use a liquid "contact enhancer" under the name "Stabilant" ( expensive by the
drop), and apply a single drop in all reachable connectors. The thinking is it will
resolve any connector difficulty if present and avoid it in the future.
9.- If problems continue, you may have the cold start valve and pressure regulator
tests peerformed .
10.- I've runned out of recommendations.