Need new engine

Question edited for clarity.
Question moved from Ford to Dodge Stealth.

Pops normally come from engines. Does the engine still run? If not, the gearbox has locked up. It is very puzzling.

And then it runs good? If yes, there is a problem in your fuel pump circuit. It could be a bad fuel pump relay, but the circuit clearly has a problem. The engine computer should signal to the relay to send power to the pump when you are trying to start it. In fact when the key is turned to on, the computer should activate the relay and turn the pump on for about 2 seconds. That puts enough fuel pressure at the engine, so that cranking the engine over should start it- no fluid needed.

check the fuel pressuere

ya it will

Marking does not matter that much because you always need to reset the timing anyway.

Here is a link for crank and cam position sensor replacement:
http://www.stealth316.com/2-cas-91-92.htm

And here is one for timing:
http://www.stealth316.com/2-ignition-timing.htm
It is just like any distributor timing except that you have to ground the right test connector, otherwise the ECU will vary the timing based on things like temperature, knock, fuel, etc.

Hello Guest and thank you for asking your question, on Fixya.

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 1991 Dodge Stealth, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people like you. So here is the link:
How to diagnose your overheating 1991 Dodge Stealth

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Thanks for the vote, and good luck!

My apologies for the delayed response. I am going back and answering questions that were never answered.
Click on the following Link. It has all the Diagrams for the Timing Belt you will need.
Before Clicking, let me know if this helped.
Again my sincerest apologies,,..

http://www.2carpros.com/car_repair_information/year/1991/make/dodge/model/stealth/1991_dodge_stealth_timing_belt_diagram_marks.htm

if you think the fans are your problem,first thing is to check the system with a hand computer,with that you can activate the fans,or run test on each part of the system.
your fans will not come on until 212 degrees.so you need a thermometer to verify temp of engine water,next check the engine temp sensor,if it doesn't see that temp it won't tell the computer to turn the fans on.if you have checked the fuses with a test light,for the fans,and the fan relay.one fan is a manual override,it will come on as soon as you turn the A/C on,then they have low speed and high.

Sorry for the delay.
I am personally going back to answer your unanswered question. I do not know if you still need the answer, but I am going to answer it in case you still do.

Click on the following direct Link. It has the Timing Belt/MARK(S) Diagrams that you will need, complete with Instructional and Directional Diagrams.

Again my apologies...
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!
http://www.2carpros.com/car_repair_information/year/1991/make/dodge/model/stealth/1991_dodge_stealth_timing_belt_diagram_marks.htm

it could be your fuel pump , even if the pump kicks in, it has to pump approx 40 pounds of pressure to the fuel rail