20 Most Recent
1995 Pontiac Grand Am - Page 5 Questions & Answers
Engine knocks when accerlating and doesn't when you get going
If I remember right there is a knock sensor that is suspose to keep that from happening. The computer recieves information from it and will make adjustments to prevent it. Check to see if the wire is still on it. If so, it may be bad. They are usually on the back side of the engine.
Heater blows cold air but heater core does not
If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
- The heater housing is usually under the dash and must be removed to gain access to the heater core.
- Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
The heater housing is disassembled to get to the heater core.
Heater Core
- Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
- Remove the heater coolant hoses.
- Remove the cable and/or vacuum control lines (if equipped).
- Remove the heater core securing brackets and/or clamps.
- Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
- To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.
Problems with 2000 pontiac grand am
If it is a 2000 model and running rough, the check engine light should be on. If it is, you need to get the computer scanned to point you in the right direction to troubleshoot the problem or problems.A mechanic would look at that and find out which cylinder is missing.
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