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Poor acceleration

Tiny
JPK1291
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  • SATURN
I have a 97 SL1 1.9L SOHC 115,000 miles, that I just replaced the head due to a crack. Head is reman from saturn. New head and manifold gaskets installed. I now have terrible acceleration. Car WILL NOT go over 3800 RPM. The transmission shifting is also terrible. Upon accel if I don't let off the gas, it will not shift to higher gear. All hoses, wires appear to be connected and unbroken. I had the battery disconnected for 2 wks before fixing the car. Is there any relearning curve for computer to get back to correct shifting patterns?
Confused in Niagara Falls!
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Monday, October 29th, 2007 AT 8:10 AM

8 Replies

Tiny
SERVICE WRITER
  • MECHANIC
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Niagara falls huh, I'm in your backyard.

I'll get back with you.
Any codes?
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Monday, October 29th, 2007 AT 8:24 AM
Tiny
JPK1291
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When I first started it, it ran rough and returned a p300 code. Now runs smoothly until it reaches 3700rpm.
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Monday, October 29th, 2007 AT 8:47 AM
Tiny
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Haven't had a chance to get back. One thing I would definitly take a look at is the coolant temp sensor for any cracks and spray a little carb cleaner around the intake and injectors to be sure of no vaccuum leaks.

What was the reason for the head replacement. Overheat?
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Monday, October 29th, 2007 AT 11:56 AM
Tiny
JPK1291
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Head was cracked. Oil in coolant system. Will try what you suggest when I get a chance, wife in hospital right now.
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Monday, October 29th, 2007 AT 1:32 PM
Tiny
JPK1291
  • MEMBER
  • 7 POSTS
Thanks for all the suggestions. I took the timing cover back off and saw that I had put the chain/gear back on 1 or 2 teeth off. Corrected this, put it back together, and it runs great now. Again thanks for your replies. I was wondering if the cam alignment might be the cause, and multi responses suggesting this prodded me to recheck. THANKS
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Wednesday, November 7th, 2007 AT 7:10 PM
Tiny
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Thanks for the update, Funny, about diagnosing, you want to assume what you did was right.

Hope all is well with the wife.
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Thursday, November 8th, 2007 AT 5:10 AM
Tiny
JPK1291
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She's out of the hospital. Off/on feeling good and then bad. Multiple medications will hopefully eventually get rid of pain. Thanks for asking!
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Sunday, November 11th, 2007 AT 3:23 PM
Tiny
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Small world. There is so much sickness in NF. How can it be so screwed up? While this is a car forum. My heart sinks knowing customers and the health issues of our area. So sorry to hear about the pain. That is really upsetting.

On a good note, the Satty runs good huh. Take care of the Honey. And stop back in here anytime.
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Sunday, November 11th, 2007 AT 5:15 PM

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