Engine Cranks but won't Start

Created: unknown

Last updated: 10/3/99

Author/source: Grismrud/DML (Courtesy Luke Sandel)

I have a starting problem when the engine is hot. I have read numerous articles on checking (1) the fuel pump; (2) the wiring to the fuel pump (3) the inertia switch, (4) etc. What could be wrong if the car has a fully charged battery but when warm, will not crank except when jump started and then it cranks right up.

I had a similar starting problem with my car when I first got it. The symptoms I experienced were that the starter would not crank even though I seemingly had a full battery load and the car was warm. I could get started with a jump or by topping off the battery with my charger (a battery charger is a DMC owners best friend).

The problem was simply a corroded grounding bolt where the negative side of the battery connects to the frame. This bolt tends to electro-corrode giving a poor ground connection. When you get jump-started, you are supplying power directly between the positive system side and a new ground connection established with the jumper cable and your car starts right up.

Knut Grimsrud
DeLorean Owners Association
Regional Chapter 41


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