HT4100, no power uphill - Page 2

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HT4100 4.1, 4.5, 4.9 Discussion, HT4100, no power uphill in Cadillac Engine Discussion; Do you need to replace the entire Camshaft? Or is there a way to maybe replace only worn Cams? Originally ...
  1. #16
    henrydean40 is offline Cadillac Owners Member
    Automobile(s): 1984 Cadillac Sedan Deville - ht4100
    Join Date
    Apr 2011

    Re: HT4100, no power uphill

    Do you need to replace the entire Camshaft? Or is there a way to maybe replace only worn Cams?

    Quote Originally Posted by BeelzeBob View Post
    All is not lost if that is what it is. Replacement cams are readily available, it is not that difficult to do and it is a sure fix. For an older car that nice it is a simple and easy thing to do. While in there, buy the service parts "reseal" kit with the upgraded head gasket material, intake gaskets, stronger head alignment dowels, etc..... Put it back together with a fresh filter, new oil and a quart of GM EOS. The EOS (engine oil supplement) is a GM product that is engine oil heavily fortified with ZDP to help stop any incipient wear on other components and it is very usefull in a situatio like you describe on the repair. Replace the distributor drive gear that mates with the cam and you have a nice car and one that will perform well.

  2. #17
    cadillac_al is offline Cadillac Owners Connoisseur
    Automobile(s): 70 Deville 77 Fleet 78 Seville 92 Deville 03 Deville
    Join Date
    Feb 2007

    Re: HT4100, no power uphill

    How big are the hills and how slow is the crawl? When I had a 307 Olds Regency it ran fine in my area of rolling hills. When i went on a vacation near the mountains my car would barely go 40 mph up the hills. I put a fuel pump on it in a hotel parking lot and it made no difference. When i got back home it ran fine again. It just didn't have enough power to climb hills without struggling. I think cleaning the throttle body is a good practice anyway.

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