95 corolla stumbles

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Stef Caunter - 27 Feb 2007 14:39 GMT

New to me 4a-fe, 95 corolla manual, stumbled a bit under load in pretty wet
slushy conditions yesterday, otherwise fine.

The usual suspects would be plug wires, cap and rotor. I don't have a Haynes
yet, and my experience is limited to carbureted Volvo motors; does this motor
have a serviceable cap and rotor?

The fact this was under load might point to vacuum I suppose. Is there a usual
diagnosis for this? I just don't know all the fixes yet.

I've read up on these motors, and apparently they use oil (PO said it was
consuming oil). None is being obviously burned so I suppose it is getting by
the rings.

-Stefan
(95 Corolla 4a-fe 5 speed, power nothing)

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Ray O - 27 Feb 2007 17:35 GMT

> New to me 4a-fe, 95 corolla manual, stumbled a bit under load in pretty
> wet slushy conditions yesterday, otherwise fine.
[quoted text clipped - 12 lines]
> -Stefan
> (95 Corolla 4a-fe 5 speed, power nothing)

I am pretty sure that the 4A-FE motor has a serviceable cap and rotor. Some
aftermarket ignition parts can cause the symptoms you are describing, and
rather than experiment with which ones work and do not work, your best bet
is to stick to OEM (Denso) cap, rotor, and wires and Denso or NGK plugs.

A vacuum leak would probably cause the same symptoms regardless of road
conditions, and since the problem appears to be related to wet conditions,
I'd start by looking at ignition parts.

Signature

Ray O
(correct punctuation to reply)

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Truckdude - 27 Feb 2007 17:51 GMT

>> New to me 4a-fe, 95 corolla manual, stumbled a bit under load in pretty
>> wet slushy conditions yesterday, otherwise fine.
[quoted text clipped - 22 lines]
> conditions, and since the problem appears to be related to wet conditions,
> I'd start by looking at ignition parts.

Yes, it does.

FWIW, I have always used aftermarket ignition parts on my 4A-FE with no
problem at all.

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Ray O - 27 Feb 2007 20:43 GMT

>>> New to me 4a-fe, 95 corolla manual, stumbled a bit under load in pretty
>>> wet slushy conditions yesterday, otherwise fine.
[quoted text clipped - 27 lines]
> FWIW, I have always used aftermarket ignition parts on my 4A-FE with no
> problem at all.

Truckdude, if you have already found aftermarket ignition parts that work
well on the 4A-FE, then you may want to share which parts work well.

I'll freely admit that I have a very strong bias towards OEM parts because I
know their quality, I know they fit well and work, and because I don't like
to give recommendations for parts if I do not know how they will perform.

Signature

Ray O
(correct punctuation to reply)

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Stef Caunter - 27 Feb 2007 21:27 GMT

>>> I am pretty sure that the 4A-FE motor has a serviceable cap and rotor.
>>> Some aftermarket ignition parts can cause the symptoms you are
[quoted text clipped - 5 lines]
>>> conditions, and since the problem appears to be related to wet
>>> conditions, I'd start by looking at ignition parts.

where do you all get parts online? Car needs lower left balljoint, local parts
suppliers apparently need to make boat payments...

Stefan (95 Corolla, power nothing)

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