Good day by lukester - March 28th 2024 12:26 pm
| Crazy mods by MufflerMan Mike - March 28th 2024 9:38 am
| | Lew Greger by MufflerMan Mike - March 27th 2024 5:15 pm
| | | Hard start when warm | Joined: May 2020 Posts: 75 journeyman | OP journeyman Joined: May 2020 Posts: 75 | I am having trouble starting the van when warm. When it is cold I can give the gas two even pumps and she fires right up. If I have driven it recently it usually takes 2 or 3 attempts to start. I have been trying 1 full pump on the gas, just a half gas pedal hold, 2 full pumps, and none of that seems to really change or help.
1977 Chevy G20 Ramjet 350 4L80E 4x4
| | | Re: Hard start when warm | Joined: Jun 2010 Posts: 18,286 Likes: 559 | Joined: Jun 2010 Posts: 18,286 Likes: 559 | Shouldnt have to pump it at all to start it ....
SUNSHINE VANS-VAN DIEGO ADRENALIN BY THE GALLON & CHASIN RACIN ONE FOR THE DIRT & ONE FOR THE STREETS '93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB '92 CHEVY G30 454 BEAUVILLE EXT 146" WB | | | Re: Hard start when warm | Joined: May 2020 Posts: 75 journeyman | OP journeyman Joined: May 2020 Posts: 75 | Shouldnt have to pump it at all to start it .... You're just talking about when it's warm correct?
1977 Chevy G20 Ramjet 350 4L80E 4x4
| | | Re: Hard start when warm | Joined: Jun 2010 Posts: 18,286 Likes: 559 | Joined: Jun 2010 Posts: 18,286 Likes: 559 | Ive been on many many trips for weeks at a time, north and south and neither of my vans cold blooded 454 RAT motors need to be pumped
Hard start in HOT weather means you have an amperage prob ... cant get enough to crank the hot starter ..... try going to a reduction gear starter.... way less amps required to turn it over
Another thing is check all ground straps and batt cables as things expand in HOT weather, you may be losin contact
Last edited by frscke1; August 02nd 2020 5:27 pm.
SUNSHINE VANS-VAN DIEGO ADRENALIN BY THE GALLON & CHASIN RACIN ONE FOR THE DIRT & ONE FOR THE STREETS '93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB '92 CHEVY G30 454 BEAUVILLE EXT 146" WB | | | Re: Hard start when warm | Joined: May 2020 Posts: 75 journeyman | OP journeyman Joined: May 2020 Posts: 75 | Ive been on many many trips for weeks at a time, north and south and neither of my vans cold blooded 454 RAT motors need to be pumped
Hard start in HOT weather means you have an amperage prob ... cant get enough to crank the hot starter ..... try going to a reduction gear starter.... way less amps required to turn it over It's not necessarily hot weather, more so running to a store, going in, and coming back out to a warm engine. I will try not pumping the pedal for a few days and see if I can get any more clues.
1977 Chevy G20 Ramjet 350 4L80E 4x4
| | | Re: Hard start when warm | Joined: Jun 2010 Posts: 18,286 Likes: 559 | Joined: Jun 2010 Posts: 18,286 Likes: 559 | I see in your other post about headlights the ground straps is a possible answer ... you may need to do a rewire with fresh copper ....
After all the van is over 40yr old
Last edited by frscke1; August 02nd 2020 5:38 pm.
SUNSHINE VANS-VAN DIEGO ADRENALIN BY THE GALLON & CHASIN RACIN ONE FOR THE DIRT & ONE FOR THE STREETS '93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB '92 CHEVY G30 454 BEAUVILLE EXT 146" WB | | | Re: Hard start when warm | Joined: May 2020 Posts: 75 journeyman | OP journeyman Joined: May 2020 Posts: 75 | I see in your other post about headlights the ground straps is a possible answer ... you may need to do a rewire with fresh copper ....
After all the van is over 40yr old Will do. Shouldn't be too bad and man these ac delco parts are cheap compared to my Audi we just sold!
1977 Chevy G20 Ramjet 350 4L80E 4x4
| | | Re: Hard start when warm | Joined: Jan 2001 Posts: 2,964 Likes: 63 veteran | veteran Joined: Jan 2001 Posts: 2,964 Likes: 63 | Sounds like a carburetor problem. I have a similar problem on my 76 Dodge, starts good when cold, when hot after setting, hard to start and an odor of gas after starting, Been told it is the float, possibly the choke, or the carb just needs a complete rebuild. Timing can also affect starting when hot. | | | Re: Hard start when warm | Joined: Feb 2016 Posts: 1,266 Likes: 43 old hand | old hand Joined: Feb 2016 Posts: 1,266 Likes: 43 | Need more detail on your current carb set up, engine specs, including ignition to better diagnose. Very likely your motor is heat soaking, which always makes for hard starts after running. But we need more info
1987 B250 - Painkiller
| | |
0 members (),
17
guests, and
6
robots. | Key: Admin,
Global Mod,
Mod | | Forums68 Topics35,746 Posts537,916 Members12,725 | Most Online177 May 8th, 2013 | | | |