89 Camry cranks but won't start

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Old 13 Jul 2003, 11:39 am   #1 (permalink)
James
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Default 89 Camry cranks but won't start

89 Camry, 4cyl, auto, 150,000miles, timing belt was replaced 7 years ago
with less than 60k miles on it. Used to be very easy to start. Recently, it
quits start suddenly although the starter cranks well. The following works
are done to find the problem:
1). The resistance of the ignition coil are normal.
2). Replaced spark plugs, distributor cap, rotor and wires. The spark plugs
generate light-blue sparks while cranking, which means the timing belt is
not broken.
3). Replaced fuel filter. I guess the fuel pressure is ok since I see the
fuel erupts while the ignition key is in "ON" position after the fuel line
at the filter is disconnected.
4). Tried to use auto start spray at air intake valve with no luck.
As I understand, if there is fuel and sparks, the engine should start. I
wonder if the engine will start if spark timing is not correct.
What other problem could it be, fuel injectors? Is is difficult to diagnose
fuel injectors?
Any suggestions would be appreciated.

James



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Old 15 Jul 2003, 05:48 pm   #2 (permalink)
James
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Default Re: 89 Camry cranks but won't start

Great idea. Thanks.

GD

"Jason James" <stratosphere2@bigpond.com> wrote in message
news:UjOQa.4830$wU5.2519@news-server.bigpond.net.au...
>
> "James" <NoSpamjd3321@yahoo.com> wrote in message
> newsXfQa.52976$3o3.3554759@bgtnsc05-news.ops.worldnet.att.net...
> > 89 Camry, 4cyl, auto, 150,000miles, timing belt was replaced 7 years ago
> > with less than 60k miles on it. Used to be very easy to start. Recently,

> it
> > quits start suddenly although the starter cranks well. The following

works
> > are done to find the problem:
> > 1). The resistance of the ignition coil are normal.
> > 2). Replaced spark plugs, distributor cap, rotor and wires. The spark

> plugs
> > generate light-blue sparks while cranking, which means the timing belt

is
> > not broken.
> > 3). Replaced fuel filter. I guess the fuel pressure is ok since I see

the
> > fuel erupts while the ignition key is in "ON" position after the fuel

line
> > at the filter is disconnected.
> > 4). Tried to use auto start spray at air intake valve with no luck.
> > As I understand, if there is fuel and sparks, the engine should start. I
> > wonder if the engine will start if spark timing is not correct.
> > What other problem could it be, fuel injectors? Is is difficult to

> diagnose
> > fuel injectors?
> > Any suggestions would be appreciated.
> >
> > James

>
> If you have spark and fuel prssure, that should be enough to start the
> engine even if the injectors are dirty.
>
> I'd check the ignition timing next, then compression, then valve timing.
>
> jason
>
>



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Old 16 Jul 2003, 01:18 am   #3 (permalink)
Dan
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Default Re: 89 Camry cranks but won't start

I used to have an 89 4cyl. that I bought in California. It wouldn't
start whenever I tuned it up and removed the snorkel that goes from
the air cleaner to the throttle body. There's also an electrical
connector on top of that snorkel. It must be connected else the car
won't start.

You might also make sure that the exhaust is not plugged up. A plugged
catalytic convert would prevent the car from starting. If you feel air
coming out of the exhaust while someone else is cranking the engine
then it's probably ok.
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Old 16 Jul 2003, 10:54 am   #4 (permalink)
James
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Default Re: 89 Camry cranks but won't start

Another good idea. Thank you.


"Dan" <SPEEDY57S@EXCITE.COM> wrote in message
news:a0cfc93e.0307152218.78dc7d50@posting.google.c om...
> I used to have an 89 4cyl. that I bought in California. It wouldn't
> start whenever I tuned it up and removed the snorkel that goes from
> the air cleaner to the throttle body. There's also an electrical
> connector on top of that snorkel. It must be connected else the car
> won't start.
>
> You might also make sure that the exhaust is not plugged up. A plugged
> catalytic convert would prevent the car from starting. If you feel air
> coming out of the exhaust while someone else is cranking the engine
> then it's probably ok.



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Old 18 Jul 2003, 08:24 am   #5 (permalink)
Bubba Goat
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Default Re: 89 Camry cranks but won't start

are your plug wires installed correctly? make sure each one is in the
right place.

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Old 29 Jul 2003, 02:42 pm   #6 (permalink)
Jock
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Default Re: 89 Camry cranks but won't start

I was in almost the same situation described, with my 1986 Camry. It
was running fine when we parked it, but a few days later, it refused
to start. It cranked just fine, but never seemed to fire. Things I
tried:
- changed distributor cap, rotor, and plug wires
- saw nice blue spark on each plug pulled out
- measured primary and secondary coil resistance - all within specs
- changed fuel filter (wasn't clogged), plenty of gas
- tested fuel pump by jumpering Fp and B+ connectors, with ignition
on. Sounded ok (I could hear fuel going through lines).
- removed cold start injector; when engine was cranked, it put out
a nice spray of gas
- verified timing belt had not slipped a tooth. When I had the engine
turned to #1 TDC, I was able to look in an inspection port on the
timing belt cover. The port on my car is sealed by a rubber plug
(about 1"); I had to use a mirror and flashlight to see the camshaft
pulley through the port.


I put in a new coil, and surprise, it started right up. In fact it
runs better than it has in years.

Changing the coil is a little tricky. I followed the detailed
directions I found at autozone.com, and pulled out the distributor.
(You could probably change to coil with the distributor in place if
you have a VERY short offset Phillips screwdriver.) Before I removed
the distributor, I set the engine to #1 TDC, and the rotor at #1. I
noted the rotor position, and used masking tape to mark the
distributor timing. With the distributor out, the coil was simple to
replace. Putting the distributor back in correctly was the trick. On
mine, the gear had one tooth marked on the edge closest to the cap.
When I lined that tooth up with a mark on the distributor, and put it
back in the engine, it worked out just fine, with the rotor pointing
the same as when I removed the distributor. I had a shop verify that
the timing was still correct, which I thought was ok, since it was now
running just fine.

Jock
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Old 30 Jul 2003, 12:57 pm   #7 (permalink)
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Default Re: 89 Camry cranks but won't start

Daniel M. Dreifus <nospampls2002@yahoo.com> wrote:
: jsembry@opent.com (Jock) wrote in message news:<e4c88b95.0307291142.30e1775@posting.google.c om>...

:> - measured primary and secondary coil resistance - all within specs
:>
:> I put in a new coil, and surprise, it started right up. In fact it
:> runs better than it has in years.
:>
: Puzzling.
: Coil tested good, but failed to start the car.

Could have been a load related problem. High series resistance could have
caused the voltage to be too low when firing a plug but when running open
circuit, didn't show the voltage drop.

Additionally "testing the coil" could have been a simple resistance check
(I don't know though) which would not reveal any high voltage breakdown.

I had a problem with a Celica once. Wouldn't fire after heat soaking
(turning engine off, allowing heat to build up in the engine
compartment).

The problem was an intermittant reluctance pickup in the distributor.

b.
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