When reaching 60 mph on the highway speed starts decelera...
Customer
When reaching 60 mph on the highway speed starts deceleration. 2006 grand prix supercharge.
Mechanic's Assistant: Will the [headlights](/topics-headlight-pontiac/) turn on? Is the battery fully charged?
Yes
Mechanic's...
When reaching 60 mph on the highway speed starts deceleration. 2006 grand prix supercharge.
Mechanic's Assistant: Will the [headlights](/topics-headlight-pontiac/) turn on? Is the battery fully charged?
Yes
Mechanic's Assistant: Are you fixing your Grand Prix yourself? What have you tried so far?
New battery
Read More
Responses
kevinf630
245 days ago
Automotive Expert
vin# \*\*\*\*\*?
Still not sure what you need?
Have a certified mobile mechanic diagnose what's wrong with your car, at your home or office.
These could be two separate issues, but they could also be related. The brake booster uses engine vacuum to provide braking assist. So, if you are having engine performance problems, you might also have a lack of braking assist. This...
Hi there. You may have a bad or contaminated mass air sensor or a leak in the air tube between the mass air sensor and the throttle body. Have the computer tested for codes and check mass air sensor readings...
Hello. With the information I have, it sounds like there could be an issue with the rear differential of your van. A droning noise from the rear could be caused by one of the wheel bearings, or the carrier bearings...
The brake pad warning circuit simply looks at a closed circuit when the sensor is in tact. When the pads wear through the sensor, an open circuit is created. All the instrument cluster is looking for is an open circuit....
Hi there. It sounds like the lighting system has feedback through another circuit. This could be due to a short circuit, open circuit, missing/failed ground point, corroded ground point, corroded connector, loose connector, or relay block faults. With the age...
The check engine light indicates that the engine controller (ECU) has detected a fault in the system that could effect the exhaust emissions. The ECU stores a trouble code to help technicians diagnose the problem and lights the Check Engine...
Hi there. An engine misfire is typically caused by an ignition timing problem. In modern cars, misfiring will invariably be accompanied by a Check Engine light. A code reader will tell you which cylinder is to blame, but it may...
Hi Grace. We answered the previous question for you, but in case you didn't receive the message, here is what we sent. It’s quite possible that this is a rear oil seal or oil pan gasket that is leaking; or...
Hi there. This is typically an indicator of a damaged safety switch underneath the shifter. However, it could also be caused by a wiring or electrical glitch in the ignition system or transmission shift solenoid. It would be best to...
When reaching 60 mph on the highway speed starts deceleration. 2006 grand prix supercharge. Mechanic's Assistant: Will the [headlights](/topics-headlight-pontiac/) turn on? Is the battery fully charged? Yes Mechanic's...
When reaching 60 mph on the highway speed starts deceleration. 2006 grand prix supercharge. Mechanic's Assistant: Will the [headlights](/topics-headlight-pontiac/) turn on? Is the battery fully charged? Yes Mechanic's Assistant: Are you fixing your Grand Prix yourself? What have you tried so far? New battery