1989 Honda Prelude starting problem?
I have a 1989 Honda prelude automatic 2.0 si i have been having starting problems my car will start then when i go into a store and come back out it wont turn on i have to sit in the car for up to a half hour til it will turn on at times it wont even turn on when it hasn't been turned on in a while i heard it may something called the main relay switch what is that and were is it at in my car? How much does it cost and is it something i have to take in for someone to put in or can i do it and how long does it take can you also tell me what it looks like so i know what i am looking for? When calling for the part what is the correct term is in Main relay switch? do you happen to know how much it cost? i want to thank you for you help
Additional Details
2 hours ago
Also when i know that my car wont start its when i see that the check engine light is on and it wont go off till it goes off i know my car will turn on
2007-01-23 14:41:13 · 6 answers · asked by IN WASHINGTON 1 in Cars & Transportation ➔ Maintenance & Repairs
Seems to me the electric fuel pump has gone weak.. allowing the fuel lines to vapor-lock!
Does this help any?
2007-01-23 14:54:41 · answer #1 · answered by Anonymous · 0⤊ 2⤋
By "start up", - do you mean "won't crank", - or won't run?? Most of the Japanese cars have a small relay "in front" of the starter relay, - to carry more current to starter relay than the "key switch can handle"! I have had two Mazdas that did this regularly. I finally took the "cover boot" off the first relay and would short across the cable connections to kick the second one in, - then I could get inside and try key, - and starter would take right off. If it cranks- but won't start,- then you most likely have a fuel problem. Possibly a weak fuelpump (electric if has fuel injection), - or you could have a small leak in fuel hose, and get air in between fuelpump (if not in tank) and gastank. Air in line may take a long time to "bleed" it out through "overflow system". Cool gas pumps through fuel lines better than hot gas (especially if it is vaporizing)! Now the "hot gas", - check to see that the fuel lines aren't running close to the exhaust system, - due to a missing heat shield, or maybe bent fuel line. Last thing, -you may have a bad sensor feeding wrong information into computer, - which in turn shuts the system down till that sensor cools off, (& maybe registers properly then).Intermittent things are naturally the hardest to find!!
2016-05-24 02:55:43 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You need to replace the main relay it controls the fuel pump. Buy a new one if u get a used one u will have the same problem again later.
12 year honda tech
2007-01-27 09:23:10 · answer #3 · answered by strike_fly 2 · 0⤊ 0⤋
Relay is under dash next to drivers kick panel. We had to pull the dash out 6 inches to reach it. I wired it with longer wire and ground so it can be easily replaced. $25. Junkyard.We call it a fuel relay.
2007-01-23 14:53:52 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It could just be a bad signal being relayed to the ecu and that can be reset by disconnecting the power. I would try this first. You can do this or take it to a mechanic, it shouldn't cost very much if the mechanic is honest.
Good luck to you!
2007-01-23 15:25:25 · answer #5 · answered by Mary R 5 · 0⤊ 0⤋
the oil pump may be the causes
2007-01-23 14:49:13 · answer #6 · answered by Anonymous · 0⤊ 2⤋