It starts with fine but when I drive it park it and then ...

Howdy from Tennessee, I'm Chris aka Moose. Who am I helping today? I'm glad you've come here to get help. I will do my best to get the answer you are looking for. I help many customers, so sometimes my replies are delayed, I will respond once available. I try to be online at 1-5 pm and 10 pm-5 am every day. - Can I get the year, make, model, and engine?

I'll give you a second I'll give you all info right now

Thanks

It's a 91 Toyota minivan SV

My skills are not that great on the older vehicles. I think itis best I opt out so a better tech can help.

All right thank you though much appreciated

Welcome to JustAnswer. Thank you for contacting us for assistance with your vehicle. I'm Pete. I will be happy to assist you with your question. May I ask to whom I have the pleasure of speaking with today?

I'm sorry to hear you are having this problem. I know this can be frustrating. Without knowing all of the information like the vehicle history, the components that have been tested or replaced, and the results of any tests that need to be run, I can only give you a general answer to your question. If you have to prime the engine to start it with a dose of extra fuel or starting fluid and it will then start and run, this indicates that the fault is being caused by a lack of fuel. Since the fuel pump was already replaced and it did not resolve this issue, I recommend trying to replacing the fuel filter first ( if this has not been done already ) to see if that resolves the issue. If this does not resolve the issue then I recommend that the fuel pressure regulator, as well as the fuel injectors, are tested to see if any of them are acting up to where one of them needs to be replaced. The testing can be performed at a shop for around $100. The cost to repair the issue varies as it depends on what is found to be at fault.

Glad I could be of some help! I hope everything works out well for you! If there are any additional questions on this issue that should arise, please feel free to reply and ask! Thank you for choosing Just Answer for your questions. Have a great day!