my 97 s10 starts intimitently what could it be

5

Asked by Mar 12, 2013 at 10:15 PM about the 1997 Chevrolet S-10 2 Dr LS Extended Cab SB

Question type: Maintenance & Repair

i have a 97 s-10 with a 4.3 w motor it will start one minute n not  the next my fuel pressure spikes 66psi
but does not hold i replaced the fuel pump i changed my oil which was gas filled n not an hour later it
was gas filled again could it be my spiders or any ideas i have good spark

9 Answers

77,925

Sounds like you have some leaking or stuck open injectors, in the vortec engine fuel system the spider as you call it is a tube system from the injector solenoid assembly to each cylinder. You will have to remove the upper air chamber to gain access to the injector assembly. I would replace the assembly to avoid any future problems. Be very clean during this operation and use static discharge straps to eliminate any possible fuel ignition source. I would also drain the oil that is in it again remove the oil fill cap and leave the oil plug out until the job is completed this will allow the gas the engine to evaporate during the job. Replace your oil filter too. I've seen engines blow off their valve covers and oil pans due to fuel in the oil. Good luck

1 out of 1 people think this is helpful.
5

i am gonna try changing the spiders tomorrow was just wondering if there was any options i may have been overlooking i'm just not understanding the fact that if i hold the gas pedal down n let off it sometimes that helps it fire n start n once it starts it runs smooth as can be

2,980

I agree has to be injector(s) jacking with u. Whether mechanically or electricly operating when they shouldn't be.

77,925

When you hold the gas pedal down the computer goes into a "clear flood" mode, that shuts off the injectors until you release the fuel pedal then they go back to normal operation, with the problem you have there is enough fuel leaking by to start the engine in the clear flood mode, then when it starts the computer will try to adjust the fuel trim to make it run as good as possible even though there may be a problem. Don't forget to reset the computer after the job is done.

6,425

look at each of your sparkplugs one at a time.. the wet one(s) will be the stuck injector(s). you can hear the operation while the engine runs by holding a screwdriver on it and ear on the screwdriver.

16,195

the 97 has only 1 injector, its the spider system. What has most likely happened is the regulator on the back of the spider injector has started leaking fuel. When the upper intake is taken off there will be a washed area towards the back of the motor, clean spots = fuel leakage.

1 out of 1 people think this is helpful.
9,415

In the early 90s GM started using vaccuum controlled fuel pressure regulators on most of their vehicles. I would look at this as being a possible culprit to your problem. Inspect the vaccuum lines and even consider changing the regulator for a mechanical one that you can manually adjust.

1 out of 1 people think this is helpful.
5

thanks guys i will be pulling bit apart tomorrow n will let everyone know how it works out

5

Alright guys I'm bak been doin a lot to this thing it still starts periodically n today we tapped on the computer n it starts could it be a bad computer? But then I do sum more research on line I read that it might be the ignition switch

Your Answer

Add photo

Related Questions

  • 87 s10 intermittently will not start

    My 87 s10 pick up has a 4 cylinder 2.5. engine. Intermittently will not start or even pop. Replaced coil, plugs, wires, whole new distributor top to bottom. New fuel pump, fuel filter, egr valve, oi...

    1987 Chevrolet S-10 STD Standard Cab LB

    -

    Maintenance & Repair

  • Intermittent miss at idle. 5 answers

    2004 S-10 Crew Cab 4.3L 236,000 + miles For months now I've been having a "miss" while at idle. Not a constant miss where the cylinder(s) have no fire at all. It is definitely a miss. Sometimes when...

    2004 Chevrolet S-10 4 Dr LS 4WD Crew Cab SB

    -

    Maintenance & Repair

  • why does my s10 jerk randomly at random speeds. and thermostat plays also? 1 answer

    ok guys so I have a 99 s10 that jerks randomly at random speeds. I notice that when the truck starts its jerking the thermostat plays too. it just dies out then comes back and dies out again. especial...

    1999 Chevrolet S-10

    -

    Maintenance & Repair

  • intermittent code 32 '87 S10? 3 answers

    1987 Chevrolet S-10

    -

    Maintenance & Repair

  • Bad intermittent idle and killing ignition module s 4 answers

    I have replaced every sensor on the w code engine and rebuilt the distributor replaced coil and cap and rotor wires and plugs. Sometimes it starts and runs fine other times it runs rough and dies, ...

    1993 Chevrolet S-10

    -

    Maintenance & Repair

S-10

Looking for a Used S-10 in your area?

CarGurus has 1,613 nationwide S-10 listings starting at $2,450.

ZIP:

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,050
#2 John Saffrahn
John Saffrahn
Reputation 890
#3 Trebor66
Trebor66
Reputation 880
View All

Related Models For Sale

Used Ford Ranger
218 Great Deals out of 6,922 listings starting at $1,500
Used GMC Sonoma
11 Great Deals out of 489 listings starting at $1,500
Used Ford F-150
3,339 Great Deals out of 203,183 listings starting at $1,273
Used Toyota Tacoma
777 Great Deals out of 33,021 listings starting at $1,900
Used Dodge Dakota
146 Great Deals out of 4,312 listings starting at $1,500
Used Chevrolet Blazer
1,362 listings starting at $1,699
Used GMC Sierra 1500
1,136 Great Deals out of 57,455 listings starting at $995
Used Nissan Frontier
428 Great Deals out of 21,777 listings starting at $2,200
Used Dodge Ram 1500
528 Great Deals out of 12,900 listings starting at $1,795
Used Chevrolet C/K 1500
3 Great Deals out of 1,053 listings starting at $1,999
Used Chevrolet Camaro
643 Great Deals out of 39,207 listings starting at $2,995
Used Chevrolet Tahoe
1,041 Great Deals out of 32,011 listings starting at $1,495