vacuum leak?

mk1matt · 08-05-2006, 04:30 AM

I am fairly new to the 5s motor. first of all my motor is idling high (1,200 or so) while it is going up and down, and also feels gutless till I hit high rpm's. I think it could be a vacume leak or something that has become disconnected. If anyone has a picture of a vacuum system, and a good Idea of what it cold be please let me know. thank you in advance for any help.

CyFi · 08-05-2006, 12:47 PM

theres a diagram on the engine lid

mk1matt · 08-05-2006, 02:58 PM

mine is gone..... ricer that owned it be for me took it off and probably painted it red.

or if anyone can post a picture of the intake manifold, mine has 3 vacume ports on the right side that are all caped off (are they suposed to be?) and dont know what the plug into.

CyFi · 08-06-2006, 03:41 AM

hope this helps a little

mk1matt · 08-07-2006, 07:17 PM

yes thank you. what are the 3 vacuum ports on the far right hand side for (the ones caped off)? and could a temp sensor cause such bad performance? (my temp sensor dosent read anything on dash

)

dammule · 04-28-2007, 11:40 AM

ever figure it out? I have a curiously high idle, and we have gone through the manual and no luck... like 1700-1750 cold start then it comes down to 1250 or so when at operating temp. We have no vaccuum leaks, the ISCvalve works fine, The timing is right on the money... It doesn't make any sense and i'm getting frustrated.

Epic1 · 05-13-2007, 03:55 PM

the gutlessness might be a fuel filter issue.

Ben · 05-13-2007, 06:53 PM

Quote:

Originally Posted by mk1matt

yes thank you. what are the 3 vacuum ports on the far right hand side for (the ones caped off)? and could a temp sensor cause such bad performance? (my temp sensor dosent read anything on dash

)

A bad temp sensor could make the car run rich = crappy performance.

VTsuckah131 · 05-13-2007, 07:13 PM

well quick and easy way of finding if you have a vacuum leak is using the ol ciggy test. Light a cig or two and slowly scan the motor with it. If you have a vacuum leak, the smoke will be sucked in.

Also, have your coolant flushed and refilled. You could have air bubbles. Or it could be a sensor issue.

CyFi · 05-14-2007, 12:04 PM

Quote:

Originally Posted by VTsuckah131

well quick and easy way of finding if you have a vacuum leak is using the ol ciggy test. Light a cig or two and slowly scan the motor with it. If you have a vacuum leak, the smoke will be sucked in.

Also, have your coolant flushed and refilled. You could have air bubbles. Or it could be a sensor issue.

thanks but no thanks, i feed my car tar not.

08-05-2006, 04:30 AM	#1 (permalink)
mk1matt mr2 misfortunate Join Date: Feb 2006 Location: clackamas, OR Posts: 172 Thanks: 3 Thanked 2 Times in 2 Posts My Google Map iTrader Rating: (0/0% )	vacuum leak? I am fairly new to the 5s motor. first of all my motor is idling high (1,200 or so) while it is going up and down, and also feels gutless till I hit high rpm's. I think it could be a vacume leak or something that has become disconnected. If anyone has a picture of a vacuum system, and a good Idea of what it cold be please let me know. thank you in advance for any help.

08-05-2006, 02:58 PM	#3 (permalink)
mk1matt mr2 misfortunate Join Date: Feb 2006 Location: clackamas, OR Posts: 172 Thanks: 3 Thanked 2 Times in 2 Posts My Google Map iTrader Rating: (0/0% )	mine is gone..... ricer that owned it be for me took it off and probably painted it red. or if anyone can post a picture of the intake manifold, mine has 3 vacume ports on the right side that are all caped off (are they suposed to be?) and dont know what the plug into. Last edited by mk1matt; 08-06-2006 at 02:24 AM.

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08-05-2006, 12:47 PM	#2 (permalink)
CyFi ShamWOW! Join Date: Oct 2005 Posts: 1,390 Thanks: 12 Thanked 38 Times in 35 Posts iTrader Rating: (10/100% )	theres a diagram on the engine lid

08-06-2006, 03:41 AM	#4 (permalink)
CyFi ShamWOW! Join Date: Oct 2005 Posts: 1,390 Thanks: 12 Thanked 38 Times in 35 Posts iTrader Rating: (10/100% )	hope this helps a little

08-07-2006, 07:17 PM	#5 (permalink)
mk1matt mr2 misfortunate Join Date: Feb 2006 Location: clackamas, OR Posts: 172 Thanks: 3 Thanked 2 Times in 2 Posts My Google Map iTrader Rating: (0/0% )	yes thank you. what are the 3 vacuum ports on the far right hand side for (the ones caped off)? and could a temp sensor cause such bad performance? (my temp sensor dosent read anything on dash )

04-28-2007, 11:40 AM	#6 (permalink)
dammule pool junkie Join Date: Dec 2006 Location: Duluth Posts: 45 Thanks: 3 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	ever figure it out? I have a curiously high idle, and we have gone through the manual and no luck... like 1700-1750 cold start then it comes down to 1250 or so when at operating temp. We have no vaccuum leaks, the ISCvalve works fine, The timing is right on the money... It doesn't make any sense and i'm getting frustrated.

05-13-2007, 03:55 PM	#7 (permalink)
Epic1 nothing but skills Join Date: Jun 2006 Location: Fresno, Ca Posts: 41 Thanks: 1 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	the gutlessness might be a fuel filter issue.

05-13-2007, 07:13 PM	#9 (permalink)
VTsuckah131 Sirc's secret lover Join Date: Feb 2006 Location: Gainesville, VA Posts: 306 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (1/100% )	well quick and easy way of finding if you have a vacuum leak is using the ol ciggy test. Light a cig or two and slowly scan the motor with it. If you have a vacuum leak, the smoke will be sucked in. Also, have your coolant flushed and refilled. You could have air bubbles. Or it could be a sensor issue.