Q&A: Uphill parking spot puts pressure on transmission
QUESTION: My wife called the other day because she could not get the transmission shifted out of park on her 2008 Chevy Impala. The car started fine. She had it parked on a slight uphill inclined driveway. When a tow truck lifted the back of the car up so that the rear wheels were slightly above the front wheels, the transmission worked fine and has ever since. We are reminding each other never to park the car with the front end up. Any ideas?ANSWER: The issue was most likely the parking pawl engagement in the transmission, which locks the final drive so the vehicle cannot move. With the car parked on an incline, the weight of the car "leaning" on the parking pawl and its engagement with the final drive internal gear in the transmission created far more resistance to disengagement.
Since the car is front-wheel-drive, when the tow truck lifted the back of the car to a level position, that "unloaded" the parking pawl and allowed easier disengagement.
To avoid this problem, fully set the parking brake before shifting the transmission into park to prevent the weight of the vehicle from "leaning" on the parking pawl. If you're going to use the parking brake, set it each and every time you park the vehicle in order to prevent the parking brake cables from corroding and sticking in the "on" position.
Q: I have a question on the "low fuel" light on my 1998 F-150 truck. If the fuel gauge is broken, will the "low fuel" light still work?
A: That depends. If the gauge in the instrument cluster itself has failed, the "low fuel" warning light may still illuminate when the tank is low on fuel. However, if the failure is in the fuel pump/sending unit inside the gas tank, I don't think the warning light will illuminate. If the gauge moves at all when you turn the key to the "on" position, it's probably OK. A more sophisticated test is to connect a special test unit to the harness connected at the fuel tank and vary the resistance in the circuit while watching the gauge. A simpler do-it-yourself test: With the gauge out of circuit, apply battery voltage to the "positive" side of the gauge. The needle should move all the way to the Full or Empty position, depending on the vehicle.
Q: I have a 1997 and a 2004 Lincoln Town Car. When the headlights are turned on during the day, the dash lights automatically dim, making it difficult or impossible to read the instrument panel. I see no need for this since there is a dimmer switch for the dash lights. I think it is a serious safety hazard. The dimmer switch does not overcome the decreased automatic illumination. Can anything be done?
Fuel Sending Unit - News
If the gauge in the instrument cluster itself has failed, the "low fuel" warning light may still illuminate when the tank is low on fuel. However, if the failure is in the fuel pump/sending unit inside the gas tank, I don't think the warning light will
Lithgow City Council is also doing its bit by sending one of its mobile fuel tankers to refuel the emergency vehicles being used in the clean-up. Because there was no power in the Blackheath, Medlow Bath area no fuel was available except from the
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Adding R134 and fuel sending unit - Buick Forums
I just recharged the AC on my 96 PAU, and when you recharge it, you have to use the low pressure port, this should be the port closest to the accumulator. Now, my low pressure port was physically higher off the ground than my high pressure port, so it can be confusing. But if you are using one of those DIY one way charging kits, the attachment will only fit low pressure ports, so it is somewhat "dummy proof." buickforums.com recognizes that "Buick", it's logos and various model names and numbers are registered trademarks of the General Motors Corporation. These terms are used for identification purposes only. buickforums.com is not affiliated in any way with the General Motors Corporation, Buick or any other company listed herein. All information on this site is the opinion of its members and not the opinion of the site itself. ©2010 buickforums.com. All rights reserved.
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Bad Fuel Sending Unit???: So I was driving home the other day and out of no where my car just dies on me. I turn... 
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High fuel level in the tank results in low sending unit resistance and a low fuel level increases sending unit resistance (Figure 13). If the fuel sending ...Domestic light trucks & vans tune-up, mechanical, service & repair, 1986
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