Dear Expert,
Here is your challenge:
I’m an Electronics Technician with quite a bit of amateur mechanic
experience. But no EFI experience.
My ’87 Camry (automatic, 4-cylinder, 3S-FE/2.0L engine, 90k mi.) has
been stalling. This problem occurs
intermittently. What will happen is that I will step on the accelerator
and the engine will quit. If I let up on the gas right away, the engine
is able to keep idling almost normally. If the car does stall, it may
turn over but not start for some time, usually 2 to 7 minutes of
repeated attempts. If I am moving and I notice that it wants to quit I
can make several stabs at the gas pedal until (sometimes) the engine
comes back. When this occurs on the interstate, sometimes, it will start
to die and then I step on the gas and the tach will indicate that the
engine is speeding up but, the car will be slowing down– and at the
same time I smell an odor of exhaust/poorly burned gasoline.
I checked the transmission fluid just to be sure. It was okay in level
and color. Transmission works fine at all other times.
The computer has no error codes. I reset it by pulling the EFI fuse– no
help
I ran a test from a Chilton book which showed the O2 sensor to be
operating correctly. (however during the test the engine may not have
been in its failure mode- can’t remember)
I’ve pulled and cleaned several electrical connectors in the engine
compartment.
I sort of checked the air flow meter I think it is okay – not certain.
(hard to know with intermittents)
This problem comes and goes – bad, then good – no in-between. So, it
seems to me like it is an intermittent electrical problem. Also, with
this occasional transmission involvement, I think it might be related in
some way to the ECT system. I don’t have a service manual and I don’t
have much knowledge of these systems.
Questions:
Do you think I have two problems – engine and transmission?
What one failure would cause both problems?
What can I check or replace?
What should I test or check while failure is occurring?
How can I narrow this down? Is it an electrical problem?
Is this a problem that you have seen before?
Not enough money to go to a mechanic so, what is your best guess?
Help me please this is driving me nuts!!
Thank you so much for any help you might offer.
E-mail is welcome – margr…@radiks.net
Mark Margrave
posted by admin in Uncategorized and have
Comments (2)