Zeus51
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- Birmingham, AL
Working on my m1009. New vacuum hoses and trans vacuum modulator. I know there are a lot posts about vacuum pumps and how to troubleshoot ones that aren’t working. But what about sort of working?
I can only get a vacuum of 14-17 out of the vacuum pump by disconnecting the lower hose from the vacuum regulator valve at the IP and connecting that hose to a gauge that shows the 14-17 during engine idle. Isn’t it suppose to be 20?
Also, with the vacuum pump hose connected to the regulator valve, but a gauge connected to the regulator top port, I only get 4-5 on the gauge at engine idle?
Looking for opinions: vacuum pump going bad or the vacuum regulator valve turned too far in a direction OR…. Is all good in the hood? Just curious as to where to start and don’t want to waste my time.
I can only get a vacuum of 14-17 out of the vacuum pump by disconnecting the lower hose from the vacuum regulator valve at the IP and connecting that hose to a gauge that shows the 14-17 during engine idle. Isn’t it suppose to be 20?
Also, with the vacuum pump hose connected to the regulator valve, but a gauge connected to the regulator top port, I only get 4-5 on the gauge at engine idle?
Looking for opinions: vacuum pump going bad or the vacuum regulator valve turned too far in a direction OR…. Is all good in the hood? Just curious as to where to start and don’t want to waste my time.