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Hi, I am having problems with my 1998 gmc yukon and I ...
Sent to Car Experts April 30 11:40 AM

Hi, I am having problems with my 1998 gmc yukon and I don't know what to do.
The problem is when the truk is running ,is running very slow. I alreday check the maf sensor ,map and I alredy changed one of the oxigen sensor .I also check the pressure of the fuel pump and it has 80psi I thing is ok,but it doesn't metter if I put more gas in the pedal it's run very slow.In the begining the service engine soon come up and I check the codes that's why I replaced the oxigen sensor,but now it doesn't show up any more. I don't know if you guys can help my just to figure out what could be the problem thank you.

 

Optional Information:
1998 GMC yukon 5.7

Already Tried:
checked the sensors

Customer (name blocked for privacy)
Status:  Closed   Value: $10
Info Request
April 30 11:48 AM (8 minutes and 19 seconds later)
         
REPLIED to Info RequestCheck Mark
Where did you check the fuel pressure at?

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PictureHammer Time -- L1 Master Technician -- 98% Positive Feedback on 2714 Car Accepts
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Reply
April 30 2:24 PM (2 hours and 35 minutes and 56 seconds later)
         
Reply to Hammer Time's Post: I check the pressure myself 2 week ago
Customer (name blocked for privacy)
Info Request
April 30 2:28 PM (4 minutes and 6 seconds later)
         

That's not what I asked you.

What point on the car are you testing it?

Are you using the service port?



If I was helpful, please click the ACCEPT
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PictureHammer Time -- L1 Master Technician -- 98% Positive Feedback on 2714 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
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