Question on Dorman Intake Plenum 98 LeSabre
#1
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Question on Dorman Intake Plenum 98 LeSabre
As the members may recall, I replace the intake plenum on my 98. It ran great after I did the work until recently when I had the problem with the MAF sensor. I took the intake completely off and did a very good cleaning; without any of the sensors, and then reinstall. It ran great for a few days and then the same issue of the idle dropping low and the hesitation on pulling away at stops. I put a new throttle body gasket in place and I noticed that I can see the gasket on the left side (towards the front) between the plenum and throttle body. Should I be able to do this? The plenum was a Dorman. The check engine light is off.
#4
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That looks about normal......if you think it is leaking there, just spray some carb cleaner in the gap to see if there is a change in idle...
Did you replace the MAF? Aftermarket, or OEM rebuild?
Did you replace the MAF? Aftermarket, or OEM rebuild?
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WilliamE (10-27-2015)
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#6
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Dorman uim
What Tech 2 is telling you is the best way to search for vacuum leaks. I found a problem with my Dorman UIM by spraying WD40 where my manifold meets the throttle body. I would never by Dorman again as it had warped and degraded above the EGR stovepipe area. A better choice is ATP which can be found at Amazon for about $85.
#7
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What Tech 2 is telling you is the best way to search for vacuum leaks. I found a problem with my Dorman UIM by spraying WD40 where my manifold meets the throttle body. I would never by Dorman again as it had warped and degraded above the EGR stovepipe area. A better choice is ATP which can be found at Amazon for about $85.
You can pay a lot more for a UIM with the reduced diameter EGR stove pipe, as well as a steel bushing in the UIM part, but for as much more that you have to pay I did not seeing going that route worth it, so far 4 years later and no issues.
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03-14-2006 11:23 AM