Main Relay Vs Fuel Pump-but mine starts then stalls *only on hot/humid days*

[PiercedLip81]

I have searched and read a lot of threads of the car not starting is the main relay...Well my car starts regularly, no problems all through winter, but when summer hits, on the really nice days only at 80+degrees out, the car will start, then stall out like its not getting juice.

Someone told me it could be the fuel pump overheating with the weather. I read on here a lot say it could be the main relay.

If I crank it and it stalls out, I was told to try turning the key to on/off position few times to prime the fuel pump. Usually if you wait a few minutes, sometimes more it will start up fine...

Just looking what road to explore to fix this issue! I've read a lot of posts about it, but most of the peoples cars wouldnt even start...I can get mine to start, and only have this issue in the extremely hot/humid days.

Thanks!
-Ryan

[xczechboyx]

I have the exact same problem, it happens to me like once a month during the summer. It would start up and and run for like 2 seconds then stalls. I have to cranked it around 3-5 times to get it started again. I replaced the fuel filter and a mechanic checked the fuel rail and said that the engine is gettin gas, so i m in the same boat as you are.

[DaBzzMn]

http://www.cb7tuner.com/vbb/showthread.php?t=49045
read both posts, i had the same problem. I was so blown about the whole thing. So watch out for everything.

[PiercedLip81]

http://www.cb7tuner.com/vbb/showthread.php?t=49045
read both posts, i had the same problem. I was so blown about the whole thing. So watch out for everything.

So I read on yours one you said it was the wrong gas 89 not 93...my cars completely stock, and requires 89, and I put in octane/cleaners every so often...so doubtful its that....then you said it was the o2/exhaust setup and worked fine?

Thing that gets me is it only happens in the summer on extremely hot days...otherwise it wont do it...and if I crank it and wait a bit it usually starts easily, but sometimes i have to wait longer....!

Its just a hassle and embarassing when go someplace and have to crank/stop/crank/stop, wait/crank/stop/crank/starts...shuts itsself off with a put put put! haha Once the car is running its fine! It doesnt stall out after that until the cars shutoff.

[Bird333]

Sounds like the main relay to me.

[pocb7]

x2 it does sounds like the main realy, especially if the problem surface when it's hot outside.

[Strahan]

-shrug- Just replace them and see what happens. That's what I liked about my CB7, parts were dirt cheap. When something weird happened, I'd throw new parts at it until it worked again. I figured the parts that were not the problem weren't a waste of money, it just means I have that many more fresh new parts on the car

[JRJ]

It really sounds like the Main relay.

I had the exact same problem last summer. I didn´t buy a new relay. I just resoldered it. It took about 30 min. And I have never had any starting problems since that day....


First : Find and take out the relay.





Then take a look at the print. And locate the soldering points.





Now you are ready for resoldering :





This is how it should look like when you´re done.. Don´t burn the solderings....




Just put it back in and your car will start....


JRJ

[AusAccord]

happened to me on summer too especially in Australia. i re-located the relay not attachd to any metal of the chassis. if still occured, geta new one or re-solder the old one

[Mangudai]

-shrug- Just replace them and see what happens. That's what I liked about my CB7, parts were dirt cheap. When something weird happened, I'd throw new parts at it until it worked again. I figured the parts that were not the problem weren't a waste of money, it just means I have that many more fresh new parts on the car

Good way to look at it.

[do0dfromcali]

main relay for sure. It's super easy to re-solder yourself.

[puresin]

It is the main relay, Went thru the same issue. its under your dash drivers side between the door and the steering colum. What happens is over time eventually the heat makes the solder contacks come loose. You can either replace it or resoder. Which is what i did.

[quickangel93]

i have the same problem. and i used the same techniques. i used to pour cold water on the little silver computer by the suspention cone, and it would start up. now that dosent even help.

[NightRyder91]

same problem here lol
i lent my mom my car since i didnt go to school today
she calls me saying the car wont start LOL
shes all worried
wooooooooooot

[NightRyder91]

http://www.cb7tuner.com/vbb/showthread.php?t=49045
read both posts, i had the same problem. I was so blown about the whole thing. So watch out for everything.

SWEAR
i have a hole in my exhaust lol could it be that?