93 chevy lumina 3.1

Will not start unless you hold accelerator to the floor.
idols fine after starting but when you drive it about 45 miles
anhour starts jumping in hesitating

please help???????me

wrote in news:aad1fe7f-fb3d-4492-82bc-48cfb8d072e4
@googlegroups.com:

> Will not start unless you hold accelerator to the floor.
> idols fine after starting but when you drive it about 45 miles
> anhour starts jumping in hesitating
>
> please help???????me

how long since you replaced the fuel filter? KB

I replaced fuel filter and fuel pump when I started having the problems
but still yet got the same problems

In article >,
> wrote:
>I replaced fuel filter and fuel pump when I started having the problems
>but still yet got the same problems

Measure the fuel pressure at the rail when you're trying to start and at
idle. Is it what the manual says or is it something very low or does
it kick up very high at first and then drop down to normal?

Are you getting a nice hot spark at the plug?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

pressure is 45 psi which what it says in the manual should be on fuel rail

also replace coil pack

Kevin Bottorff > wrote in news:lpoqif$j59$3
@news.albasani.net:

> wrote in news:aad1fe7f-fb3d-4492-82bc-48cfb8d072e4
> @googlegroups.com:
>
>> Will not start unless you hold accelerator to the floor.
>> idols fine after starting but when you drive it about 45 miles
>> anhour starts jumping in hesitating
>>
>> please help???????me
>
> how long since you replaced the fuel filter? KB
>

they were known to have problems with the injectors too. KB

On Friday, July 11, 2014 12:53:12 PM UTC-7, wrote:
> also replace coil pack

How many miles, what climate?

I've had a weakened module in a similar 2.8L engine.
This was after 90k+ miles, most were made in Las Vegas.
Just saying, its more likely something else.

Basia

wrote:
> pressure is 45 psi which what it says in the manual should be on fuel rail

Does it stay at 45 when the car is shut off?

On Friday, July 11, 2014 3:54:42 PM UTC-7, Basia wrote:
> On Friday, July 11, 2014 12:53:12 PM UTC-7, wrote:
>
> > also replace coil pack
>
> How many miles, what climate?
>
> I've had a weakened module in a similar 2.8L engine.
> This was after 90k+ miles, most were made in Las Vegas.
> Just saying, its more likely something else.


The module sits in a very tight spot,
constantly fried by the heat, and is
very flimsy to begin with.

These cars were also notorious for
converter solenoid overheating and
locking, causing stalls, particularly
after driving higer speeds, but that's
another thing altogether, though also
cheap electronic part related.

You might look into replacing some sensors,
throttle position for example.

Basia