1996 Saturn SL2 jerking in any gear when I step on it

Tiny
NATTS
  • MEMBER
  • 1996 SATURN SL2
  • 4 CYL
  • 2WD
  • MANUAL
  • 156,000 MILES
It acts just like the old carb type when an accel pump was bad
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have the same problem?
Yes
No
Wednesday, September 22nd, 2010 AT 7:03 PM

17 Replies

Tiny
SATURNTECH9
  • EXPERT
First of all thank you very much for your donation. So are you only having it jerk when hitting the gas to accelerate?Is it worse with the a/c on?Also can you go to a auto part's store like auto zone and have them check your car for code's?If you have any code's let me know what the number's are?
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Wednesday, September 22nd, 2010 AT 7:26 PM
Tiny
NATTS
  • MEMBER
Replaced fuel filter and tps, no codes
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Wednesday, September 22nd, 2010 AT 10:05 PM
Tiny
SATURNTECH9
  • EXPERT
So are you only having it jerk when hitting the gas to accelerate?Is it worse with the a/c on?Try this take off your spark plug wire's one by one off the coil tower's so you don't get them mixed up and see if the coil tower's are corroded. Real common for that on your year and model. Let me know what you find.
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Thursday, September 23rd, 2010 AT 1:20 PM
Tiny
NATTS
  • MEMBER
Yes just when I step on the gas light or hard, no corrossion on coil towers
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Thursday, September 23rd, 2010 AT 1:45 PM
Tiny
SATURNTECH9
  • EXPERT
Is it worse with the a/c on?If your a/c works it sound's like I would check your plug's and wire's. The wire's breaking down is the most common reason for that. You could check and see what your fuel pressure is also.
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Thursday, September 23rd, 2010 AT 1:55 PM
Tiny
NATTS
  • MEMBER
It has new plugs and wires, the fuel pressure is 35 when I start it and 46 when I step on it a/c dont work
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Thursday, September 23rd, 2010 AT 3:54 PM
Tiny
SATURNTECH9
  • EXPERT
What kind of plug's did you put in?Are you sure when you replaced the wire's you got the wire's routed correctly?I had a guy with the same thing happening he replaced the wire's and got one crossed and his car did the same thing yours is doing. Let me know.
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Friday, September 24th, 2010 AT 12:07 AM
Tiny
NATTS
  • MEMBER
Yes I checked the wires , I got the plugs fron Oriely dont know what they are, what should they be and I will pull one and see
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Friday, September 24th, 2010 AT 10:11 AM
Tiny
SATURNTECH9
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/416332_1996_SL2_firing_order_1.jpg


I posted the firing order for you the big box show's the cylinder location's on the engine and the small box show's the coil's and which cylinder's go to which coil's.Please double check for me i want to cover all are base's here.Also you don't want a platnuim or split fire plug's in your engine you just want a stock plug.Let me know the make and number of the plug's you have in your engine.
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Friday, September 24th, 2010 AT 4:02 PM
Tiny
NATTS
  • MEMBER
I checked the wires against you pic. The plugs are bosch FR8DPX platinum
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Friday, September 24th, 2010 AT 5:48 PM
Tiny
SATURNTECH9
  • EXPERT
So your wire's were routed correctly?You can't run platinum plug's in your car they carbon foul I would change them see if you can get your money back on the plug's.I recommend
NGK Spark Plug: Plug No. BKR5ESA-11 or
ac delco
Part No.
41627
Let me know after you change the plug's and we will go from there.
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Friday, September 24th, 2010 AT 6:15 PM
Tiny
NATTS
  • MEMBER
Replaced plugs with 41627 and it is still the same
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Saturday, September 25th, 2010 AT 12:51 PM
Tiny
SATURNTECH9
  • EXPERT
Alright now don't have to worry about the plug's. Have you replaced the coolant temp sensor before?When they go bad which do often they cause all kind's of problem's including surging jerking etc.
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Saturday, September 25th, 2010 AT 1:09 PM
Tiny
NATTS
  • MEMBER
I checked the connection and it was dry my scanner and surface thermometer ase with in 2 degrees
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Saturday, September 25th, 2010 AT 2:18 PM
Tiny
SATURNTECH9
  • EXPERT
I didn't know you had a scanner that could read live engine data alright hears what you can do the coolant temp sensor's can be tricky to diagnose sometimes. You will have to watch the coolant temp on the scanner and compare it to the actual temp with your temp gun till the fan come's. Watch for unstable coolant temp on your scanner meaning bouncing around a lot the fan will come on from 222-226 degree's. Sometimes the sensor's don't act up till the higher coolant temp's or can even very intermintant in showing a failure. Also was the connector you checked corroded?Which connector did you check the top or the bottom one?Let me know what you find.
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Saturday, September 25th, 2010 AT 2:36 PM
Tiny
NATTS
  • MEMBER
Ok will do , I am taking it on a vacation leaving today for 2 weeks, we are towing it behaind m/h
so will have to live with it till we get back, will you be here then
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Saturday, September 25th, 2010 AT 2:51 PM
Tiny
SATURNTECH9
  • EXPERT
I will be here shoot me a message when you get back. Have a good trip.
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Saturday, September 25th, 2010 AT 2:56 PM

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