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99 Chevy Suburban 5.7L Engine Won't Accelerate
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NE'sFinest
New User
Oct 10, 2013, 8:17 AM
Post #1 of 7
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99 Chevy Suburban 5.7L Engine Won't Accelerate
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I have a 1999 Chevy Suburban K1500 4 wheel drive. It has a 5.7 liter engine and has 360,000 miles. I recently had a fuel pump put in last year. It is now running sluggish when I accelerate it will not go. This happens after it seems to warm up about 15 minutes of driving. I just replaced the fuel filter thinking that it may have been plugged up but it is still running poorly. When I put the fuel pressure gauge on it, it read 61-62 during start up and then dropped down to 57-59 (pulsates rapidly) after I started it. Any advice would be greatly appreciated.
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 10, 2013, 8:36 AM
Post #2 of 7
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Re: 99 Chevy Suburban 5.7L Engine Won't Accelerate
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The fuel pressure seems to be fine. Have it scanned for any stored trouble codes. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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NE'sFinest
New User
Oct 10, 2013, 8:53 AM
Post #3 of 7
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Re: 99 Chevy Suburban 5.7L Engine Won't Accelerate
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Thank you for the quick response, I did have it scanned and there is nothing wrong but the oxygen sensor. Can this affect how the car runs?
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nickwarner
Veteran
/ Moderator
Oct 10, 2013, 11:27 AM
Post #4 of 7
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Re: 99 Chevy Suburban 5.7L Engine Won't Accelerate
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What was the code?
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NE'sFinest
New User
Oct 11, 2013, 6:32 AM
Post #6 of 7
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Re: 99 Chevy Suburban 5.7L Engine Won't Accelerate
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Yes it is on the original engine
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Discretesignals
Ultimate Carjunky
/ Moderator
Oct 11, 2013, 3:24 PM
Post #7 of 7
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Re: 99 Chevy Suburban 5.7L Engine Won't Accelerate
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You should do a compression check to see what the mechanical condition of the engine is. Be sure the battery is fully charged, the fuel and ignition is disabled, and the throttle is wide open when you do your test. Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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