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Old 06-19-2001, 06:47 AM
etsa etsa is offline
Registered User
Join Date: Apr 2001
Location: Hawaii
Posts: 147
Hi All:

I got a call from the dealer saying I needed a new battery and the car refused to start after I had my A/C converted to 134. Paid them too much for a battery and the conversion.

When I picked up my car from the dealer, I noticed that the car is knocking and pinging while driving and the speedo is very jumpy, the A/C doesn't turn off even though all the buttons are pressed off, I am popping fuses left and right (number 1, 2 and 3), headlights are very dim and a very unbearable knocking and pinging sound while driving.

The dealer denies any problems and states that the car was fine when it left there. I just got out of the driveway and the car sputtered and knocked badly that I went around the block and went right back but they still deny it.

I had a knocking problem under load but it is now really bad and constant throughout the powerband. No power and I can't climb small hills.

I tried to drive it home but the knocking and pinging was so bad I had the car towed home where I will attempt to fix it myself. While at home, I discovered that it knocks and pings even at idle, it pops fuses (1,2,3 constantly), my headlights are very dim and the A/C doesn't turn off even though all the buttons are pressed off.

It sounds like I have a short somewhere but I have no idea where to start looking for this problem. I checked the obvious like the grounding to the battery and the battery cables and those are fine.

Any ideas and suggestions would be greatly appreciated.

Thank you in advance.

1987 260E Charcoal Grey 157,000 Miles
1987 260E Forest Green 120,000 Miles
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